crdp.d.ts

/***********************************************************
 * Auto-generated by protocolToCrdp. Do not edit manually.
 ***********************************************************/

export namespace Crdp {

    export type integer = number

    export interface CrdpClient {
        Console: ConsoleClient;

        Debugger: DebuggerClient;

        HeapProfiler: HeapProfilerClient;

        Profiler: ProfilerClient;

        Runtime: RuntimeClient;

        Schema: SchemaClient;

        Accessibility: AccessibilityClient;

        Animation: AnimationClient;

        ApplicationCache: ApplicationCacheClient;

        Audits: AuditsClient;

        Browser: BrowserClient;

        CSS: CSSClient;

        CacheStorage: CacheStorageClient;

        DOM: DOMClient;

        DOMDebugger: DOMDebuggerClient;

        DOMSnapshot: DOMSnapshotClient;

        DOMStorage: DOMStorageClient;

        Database: DatabaseClient;

        DeviceOrientation: DeviceOrientationClient;

        Emulation: EmulationClient;

        HeadlessExperimental: HeadlessExperimentalClient;

        IO: IOClient;

        IndexedDB: IndexedDBClient;

        Input: InputClient;

        Inspector: InspectorClient;

        LayerTree: LayerTreeClient;

        Log: LogClient;

        Memory: MemoryClient;

        Network: NetworkClient;

        Overlay: OverlayClient;

        Page: PageClient;

        Performance: PerformanceClient;

        Security: SecurityClient;

        ServiceWorker: ServiceWorkerClient;

        Storage: StorageClient;

        SystemInfo: SystemInfoClient;

        Target: TargetClient;

        Tethering: TetheringClient;

        Tracing: TracingClient;

    }

    export interface CrdpServer {
        Console: ConsoleServer;

        Debugger: DebuggerServer;

        HeapProfiler: HeapProfilerServer;

        Profiler: ProfilerServer;

        Runtime: RuntimeServer;

        Schema: SchemaServer;

        Accessibility: AccessibilityServer;

        Animation: AnimationServer;

        ApplicationCache: ApplicationCacheServer;

        Audits: AuditsServer;

        Browser: BrowserServer;

        CSS: CSSServer;

        CacheStorage: CacheStorageServer;

        DOM: DOMServer;

        DOMDebugger: DOMDebuggerServer;

        DOMSnapshot: DOMSnapshotServer;

        DOMStorage: DOMStorageServer;

        Database: DatabaseServer;

        DeviceOrientation: DeviceOrientationServer;

        Emulation: EmulationServer;

        HeadlessExperimental: HeadlessExperimentalServer;

        IO: IOServer;

        IndexedDB: IndexedDBServer;

        Input: InputServer;

        Inspector: InspectorServer;

        LayerTree: LayerTreeServer;

        Log: LogServer;

        Memory: MemoryServer;

        Network: NetworkServer;

        Overlay: OverlayServer;

        Page: PageServer;

        Performance: PerformanceServer;

        Security: SecurityServer;

        ServiceWorker: ServiceWorkerServer;

        Storage: StorageServer;

        SystemInfo: SystemInfoServer;

        Target: TargetServer;

        Tethering: TetheringServer;

        Tracing: TracingServer;

    }

    /** This domain is deprecated - use Runtime or Log instead. */
    export module Console {

        /** Console message. */
        export interface ConsoleMessage {
            /** Message source. */
            source: ('xml' | 'javascript' | 'network' | 'console-api' | 'storage' | 'appcache' | 'rendering' | 'security' | 'other' | 'deprecation' | 'worker');

            /** Message severity. */
            level: ('log' | 'warning' | 'error' | 'debug' | 'info');

            /** Message text. */
            text: string;

            /** URL of the message origin. */
            url?: string;

            /** Line number in the resource that generated this message (1-based). */
            line?: integer;

            /** Column number in the resource that generated this message (1-based). */
            column?: integer;

        }

        export interface MessageAddedEvent {
            /** Console message that has been added. */
            message: ConsoleMessage;

        }
    }

    export interface ConsoleCommands {
        /** Does nothing. */
        clearMessages?: () => Promise<void>;

        /** Disables console domain, prevents further console messages from being reported to the client. */
        disable?: () => Promise<void>;

        /** Enables console domain, sends the messages collected so far to the client by means of the
`messageAdded` notification. */
        enable?: () => Promise<void>;

    }

    export interface ConsoleClient extends ConsoleCommands {
        /** Issued when new console message is added. */
        onMessageAdded(handler: (params: Console.MessageAddedEvent) => void): void;

    }

    export interface ConsoleServer {
        /** Issued when new console message is added. */
        emitMessageAdded(params: Console.MessageAddedEvent): void;

        expose(domain: ConsoleCommands): void;

    }

    /** Debugger domain exposes JavaScript debugging capabilities. It allows setting and removing
breakpoints, stepping through execution, exploring stack traces, etc. */
    export module Debugger {

        /** Breakpoint identifier. */
        export type BreakpointId = string;

        /** Call frame identifier. */
        export type CallFrameId = string;

        /** Location in the source code. */
        export interface Location {
            /** Script identifier as reported in the `Debugger.scriptParsed`. */
            scriptId: Runtime.ScriptId;

            /** Line number in the script (0-based). */
            lineNumber: integer;

            /** Column number in the script (0-based). */
            columnNumber?: integer;

        }

        /** Location in the source code. */
        export interface ScriptPosition {
            lineNumber: integer;

            columnNumber: integer;

        }

        /** JavaScript call frame. Array of call frames form the call stack. */
        export interface CallFrame {
            /** Call frame identifier. This identifier is only valid while the virtual machine is paused. */
            callFrameId: CallFrameId;

            /** Name of the JavaScript function called on this call frame. */
            functionName: string;

            /** Location in the source code. */
            functionLocation?: Location;

            /** Location in the source code. */
            location: Location;

            /** JavaScript script name or url. */
            url: string;

            /** Scope chain for this call frame. */
            scopeChain: Scope[];

            /** `this` object for this call frame. */
            this: Runtime.RemoteObject;

            /** The value being returned, if the function is at return point. */
            returnValue?: Runtime.RemoteObject;

        }

        /** Scope description. */
        export interface Scope {
            /** Scope type. */
            type: ('global' | 'local' | 'with' | 'closure' | 'catch' | 'block' | 'script' | 'eval' | 'module');

            /** Object representing the scope. For `global` and `with` scopes it represents the actual
object; for the rest of the scopes, it is artificial transient object enumerating scope
variables as its properties. */
            object: Runtime.RemoteObject;

            name?: string;

            /** Location in the source code where scope starts */
            startLocation?: Location;

            /** Location in the source code where scope ends */
            endLocation?: Location;

        }

        /** Search match for resource. */
        export interface SearchMatch {
            /** Line number in resource content. */
            lineNumber: number;

            /** Line with match content. */
            lineContent: string;

        }

        export interface BreakLocation {
            /** Script identifier as reported in the `Debugger.scriptParsed`. */
            scriptId: Runtime.ScriptId;

            /** Line number in the script (0-based). */
            lineNumber: integer;

            /** Column number in the script (0-based). */
            columnNumber?: integer;

            type?: ('debuggerStatement' | 'call' | 'return');

        }

        export interface ContinueToLocationRequest {
            /** Location to continue to. */
            location: Location;

            targetCallFrames?: ('any' | 'current');

        }

        export interface EnableResponse {
            /** Unique identifier of the debugger. */
            debuggerId: Runtime.UniqueDebuggerId;

        }

        export interface EvaluateOnCallFrameRequest {
            /** Call frame identifier to evaluate on. */
            callFrameId: CallFrameId;

            /** Expression to evaluate. */
            expression: string;

            /** String object group name to put result into (allows rapid releasing resulting object handles
using `releaseObjectGroup`). */
            objectGroup?: string;

            /** Specifies whether command line API should be available to the evaluated expression, defaults
to false. */
            includeCommandLineAPI?: boolean;

            /** In silent mode exceptions thrown during evaluation are not reported and do not pause
execution. Overrides `setPauseOnException` state. */
            silent?: boolean;

            /** Whether the result is expected to be a JSON object that should be sent by value. */
            returnByValue?: boolean;

            /** Whether preview should be generated for the result. */
            generatePreview?: boolean;

            /** Whether to throw an exception if side effect cannot be ruled out during evaluation. */
            throwOnSideEffect?: boolean;

        }

        export interface EvaluateOnCallFrameResponse {
            /** Object wrapper for the evaluation result. */
            result: Runtime.RemoteObject;

            /** Exception details. */
            exceptionDetails?: Runtime.ExceptionDetails;

        }

        export interface GetPossibleBreakpointsRequest {
            /** Start of range to search possible breakpoint locations in. */
            start: Location;

            /** End of range to search possible breakpoint locations in (excluding). When not specified, end
of scripts is used as end of range. */
            end?: Location;

            /** Only consider locations which are in the same (non-nested) function as start. */
            restrictToFunction?: boolean;

        }

        export interface GetPossibleBreakpointsResponse {
            /** List of the possible breakpoint locations. */
            locations: BreakLocation[];

        }

        export interface GetScriptSourceRequest {
            /** Id of the script to get source for. */
            scriptId: Runtime.ScriptId;

        }

        export interface GetScriptSourceResponse {
            /** Script source. */
            scriptSource: string;

        }

        export interface GetStackTraceRequest {
            stackTraceId: Runtime.StackTraceId;

        }

        export interface GetStackTraceResponse {
            stackTrace: Runtime.StackTrace;

        }

        export interface PauseOnAsyncCallRequest {
            /** Debugger will pause when async call with given stack trace is started. */
            parentStackTraceId: Runtime.StackTraceId;

        }

        export interface RemoveBreakpointRequest {
            breakpointId: BreakpointId;

        }

        export interface RestartFrameRequest {
            /** Call frame identifier to evaluate on. */
            callFrameId: CallFrameId;

        }

        export interface RestartFrameResponse {
            /** New stack trace. */
            callFrames: CallFrame[];

            /** Async stack trace, if any. */
            asyncStackTrace?: Runtime.StackTrace;

            /** Async stack trace, if any. */
            asyncStackTraceId?: Runtime.StackTraceId;

        }

        export interface SearchInContentRequest {
            /** Id of the script to search in. */
            scriptId: Runtime.ScriptId;

            /** String to search for. */
            query: string;

            /** If true, search is case sensitive. */
            caseSensitive?: boolean;

            /** If true, treats string parameter as regex. */
            isRegex?: boolean;

        }

        export interface SearchInContentResponse {
            /** List of search matches. */
            result: SearchMatch[];

        }

        export interface SetAsyncCallStackDepthRequest {
            /** Maximum depth of async call stacks. Setting to `0` will effectively disable collecting async
call stacks (default). */
            maxDepth: integer;

        }

        export interface SetBlackboxPatternsRequest {
            /** Array of regexps that will be used to check script url for blackbox state. */
            patterns: string[];

        }

        export interface SetBlackboxedRangesRequest {
            /** Id of the script. */
            scriptId: Runtime.ScriptId;

            positions: ScriptPosition[];

        }

        export interface SetBreakpointRequest {
            /** Location to set breakpoint in. */
            location: Location;

            /** Expression to use as a breakpoint condition. When specified, debugger will only stop on the
breakpoint if this expression evaluates to true. */
            condition?: string;

        }

        export interface SetBreakpointResponse {
            /** Id of the created breakpoint for further reference. */
            breakpointId: BreakpointId;

            /** Location this breakpoint resolved into. */
            actualLocation: Location;

        }

        export interface SetBreakpointByUrlRequest {
            /** Line number to set breakpoint at. */
            lineNumber: integer;

            /** URL of the resources to set breakpoint on. */
            url?: string;

            /** Regex pattern for the URLs of the resources to set breakpoints on. Either `url` or
`urlRegex` must be specified. */
            urlRegex?: string;

            /** Script hash of the resources to set breakpoint on. */
            scriptHash?: string;

            /** Offset in the line to set breakpoint at. */
            columnNumber?: integer;

            /** Expression to use as a breakpoint condition. When specified, debugger will only stop on the
breakpoint if this expression evaluates to true. */
            condition?: string;

        }

        export interface SetBreakpointByUrlResponse {
            /** Id of the created breakpoint for further reference. */
            breakpointId: BreakpointId;

            /** List of the locations this breakpoint resolved into upon addition. */
            locations: Location[];

        }

        export interface SetBreakpointsActiveRequest {
            /** New value for breakpoints active state. */
            active: boolean;

        }

        export interface SetPauseOnExceptionsRequest {
            /** Pause on exceptions mode. */
            state: ('none' | 'uncaught' | 'all');

        }

        export interface SetReturnValueRequest {
            /** New return value. */
            newValue: Runtime.CallArgument;

        }

        export interface SetScriptSourceRequest {
            /** Id of the script to edit. */
            scriptId: Runtime.ScriptId;

            /** New content of the script. */
            scriptSource: string;

            /** If true the change will not actually be applied. Dry run may be used to get result
description without actually modifying the code. */
            dryRun?: boolean;

        }

        export interface SetScriptSourceResponse {
            /** New stack trace in case editing has happened while VM was stopped. */
            callFrames?: CallFrame[];

            /** Whether current call stack  was modified after applying the changes. */
            stackChanged?: boolean;

            /** Async stack trace, if any. */
            asyncStackTrace?: Runtime.StackTrace;

            /** Async stack trace, if any. */
            asyncStackTraceId?: Runtime.StackTraceId;

            /** Exception details if any. */
            exceptionDetails?: Runtime.ExceptionDetails;

        }

        export interface SetSkipAllPausesRequest {
            /** New value for skip pauses state. */
            skip: boolean;

        }

        export interface SetVariableValueRequest {
            /** 0-based number of scope as was listed in scope chain. Only 'local', 'closure' and 'catch'
scope types are allowed. Other scopes could be manipulated manually. */
            scopeNumber: integer;

            /** Variable name. */
            variableName: string;

            /** New variable value. */
            newValue: Runtime.CallArgument;

            /** Id of callframe that holds variable. */
            callFrameId: CallFrameId;

        }

        export interface StepIntoRequest {
            /** Debugger will issue additional Debugger.paused notification if any async task is scheduled
before next pause. */
            breakOnAsyncCall?: boolean;

        }

        export interface BreakpointResolvedEvent {
            /** Breakpoint unique identifier. */
            breakpointId: BreakpointId;

            /** Actual breakpoint location. */
            location: Location;

        }

        export interface PausedEvent {
            /** Call stack the virtual machine stopped on. */
            callFrames: CallFrame[];

            /** Pause reason. */
            reason: ('XHR' | 'DOM' | 'EventListener' | 'exception' | 'assert' | 'debugCommand' | 'promiseRejection' | 'OOM' | 'other' | 'ambiguous');

            /** Object containing break-specific auxiliary properties. */
            data?: any;

            /** Hit breakpoints IDs */
            hitBreakpoints?: string[];

            /** Async stack trace, if any. */
            asyncStackTrace?: Runtime.StackTrace;

            /** Async stack trace, if any. */
            asyncStackTraceId?: Runtime.StackTraceId;

            /** Just scheduled async call will have this stack trace as parent stack during async execution.
This field is available only after `Debugger.stepInto` call with `breakOnAsynCall` flag. */
            asyncCallStackTraceId?: Runtime.StackTraceId;

        }

        export interface ScriptFailedToParseEvent {
            /** Identifier of the script parsed. */
            scriptId: Runtime.ScriptId;

            /** URL or name of the script parsed (if any). */
            url: string;

            /** Line offset of the script within the resource with given URL (for script tags). */
            startLine: integer;

            /** Column offset of the script within the resource with given URL. */
            startColumn: integer;

            /** Last line of the script. */
            endLine: integer;

            /** Length of the last line of the script. */
            endColumn: integer;

            /** Specifies script creation context. */
            executionContextId: Runtime.ExecutionContextId;

            /** Content hash of the script. */
            hash: string;

            /** Embedder-specific auxiliary data. */
            executionContextAuxData?: any;

            /** URL of source map associated with script (if any). */
            sourceMapURL?: string;

            /** True, if this script has sourceURL. */
            hasSourceURL?: boolean;

            /** True, if this script is ES6 module. */
            isModule?: boolean;

            /** This script length. */
            length?: integer;

            /** JavaScript top stack frame of where the script parsed event was triggered if available. */
            stackTrace?: Runtime.StackTrace;

        }

        export interface ScriptParsedEvent {
            /** Identifier of the script parsed. */
            scriptId: Runtime.ScriptId;

            /** URL or name of the script parsed (if any). */
            url: string;

            /** Line offset of the script within the resource with given URL (for script tags). */
            startLine: integer;

            /** Column offset of the script within the resource with given URL. */
            startColumn: integer;

            /** Last line of the script. */
            endLine: integer;

            /** Length of the last line of the script. */
            endColumn: integer;

            /** Specifies script creation context. */
            executionContextId: Runtime.ExecutionContextId;

            /** Content hash of the script. */
            hash: string;

            /** Embedder-specific auxiliary data. */
            executionContextAuxData?: any;

            /** True, if this script is generated as a result of the live edit operation. */
            isLiveEdit?: boolean;

            /** URL of source map associated with script (if any). */
            sourceMapURL?: string;

            /** True, if this script has sourceURL. */
            hasSourceURL?: boolean;

            /** True, if this script is ES6 module. */
            isModule?: boolean;

            /** This script length. */
            length?: integer;

            /** JavaScript top stack frame of where the script parsed event was triggered if available. */
            stackTrace?: Runtime.StackTrace;

        }
    }

    export interface DebuggerCommands {
        /** Continues execution until specific location is reached. */
        continueToLocation?: (params: Debugger.ContinueToLocationRequest) => Promise<void>;

        /** Disables debugger for given page. */
        disable?: () => Promise<void>;

        /** Enables debugger for the given page. Clients should not assume that the debugging has been
enabled until the result for this command is received. */
        enable?: () => Promise<Debugger.EnableResponse>;

        /** Evaluates expression on a given call frame. */
        evaluateOnCallFrame?: (params: Debugger.EvaluateOnCallFrameRequest) => Promise<Debugger.EvaluateOnCallFrameResponse>;

        /** Returns possible locations for breakpoint. scriptId in start and end range locations should be
the same. */
        getPossibleBreakpoints?: (params: Debugger.GetPossibleBreakpointsRequest) => Promise<Debugger.GetPossibleBreakpointsResponse>;

        /** Returns source for the script with given id. */
        getScriptSource?: (params: Debugger.GetScriptSourceRequest) => Promise<Debugger.GetScriptSourceResponse>;

        /** Returns stack trace with given `stackTraceId`. */
        getStackTrace?: (params: Debugger.GetStackTraceRequest) => Promise<Debugger.GetStackTraceResponse>;

        /** Stops on the next JavaScript statement. */
        pause?: () => Promise<void>;

        pauseOnAsyncCall?: (params: Debugger.PauseOnAsyncCallRequest) => Promise<void>;

        /** Removes JavaScript breakpoint. */
        removeBreakpoint?: (params: Debugger.RemoveBreakpointRequest) => Promise<void>;

        /** Restarts particular call frame from the beginning. */
        restartFrame?: (params: Debugger.RestartFrameRequest) => Promise<Debugger.RestartFrameResponse>;

        /** Resumes JavaScript execution. */
        resume?: () => Promise<void>;

        /** This method is deprecated - use Debugger.stepInto with breakOnAsyncCall and
Debugger.pauseOnAsyncTask instead. Steps into next scheduled async task if any is scheduled
before next pause. Returns success when async task is actually scheduled, returns error if no
task were scheduled or another scheduleStepIntoAsync was called. */
        scheduleStepIntoAsync?: () => Promise<void>;

        /** Searches for given string in script content. */
        searchInContent?: (params: Debugger.SearchInContentRequest) => Promise<Debugger.SearchInContentResponse>;

        /** Enables or disables async call stacks tracking. */
        setAsyncCallStackDepth?: (params: Debugger.SetAsyncCallStackDepthRequest) => Promise<void>;

        /** Replace previous blackbox patterns with passed ones. Forces backend to skip stepping/pausing in
scripts with url matching one of the patterns. VM will try to leave blackboxed script by
performing 'step in' several times, finally resorting to 'step out' if unsuccessful. */
        setBlackboxPatterns?: (params: Debugger.SetBlackboxPatternsRequest) => Promise<void>;

        /** Makes backend skip steps in the script in blackboxed ranges. VM will try leave blacklisted
scripts by performing 'step in' several times, finally resorting to 'step out' if unsuccessful.
Positions array contains positions where blackbox state is changed. First interval isn't
blackboxed. Array should be sorted. */
        setBlackboxedRanges?: (params: Debugger.SetBlackboxedRangesRequest) => Promise<void>;

        /** Sets JavaScript breakpoint at a given location. */
        setBreakpoint?: (params: Debugger.SetBreakpointRequest) => Promise<Debugger.SetBreakpointResponse>;

        /** Sets JavaScript breakpoint at given location specified either by URL or URL regex. Once this
command is issued, all existing parsed scripts will have breakpoints resolved and returned in
`locations` property. Further matching script parsing will result in subsequent
`breakpointResolved` events issued. This logical breakpoint will survive page reloads. */
        setBreakpointByUrl?: (params: Debugger.SetBreakpointByUrlRequest) => Promise<Debugger.SetBreakpointByUrlResponse>;

        /** Activates / deactivates all breakpoints on the page. */
        setBreakpointsActive?: (params: Debugger.SetBreakpointsActiveRequest) => Promise<void>;

        /** Defines pause on exceptions state. Can be set to stop on all exceptions, uncaught exceptions or
no exceptions. Initial pause on exceptions state is `none`. */
        setPauseOnExceptions?: (params: Debugger.SetPauseOnExceptionsRequest) => Promise<void>;

        /** Changes return value in top frame. Available only at return break position. */
        setReturnValue?: (params: Debugger.SetReturnValueRequest) => Promise<void>;

        /** Edits JavaScript source live. */
        setScriptSource?: (params: Debugger.SetScriptSourceRequest) => Promise<Debugger.SetScriptSourceResponse>;

        /** Makes page not interrupt on any pauses (breakpoint, exception, dom exception etc). */
        setSkipAllPauses?: (params: Debugger.SetSkipAllPausesRequest) => Promise<void>;

        /** Changes value of variable in a callframe. Object-based scopes are not supported and must be
mutated manually. */
        setVariableValue?: (params: Debugger.SetVariableValueRequest) => Promise<void>;

        /** Steps into the function call. */
        stepInto?: (params: Debugger.StepIntoRequest) => Promise<void>;

        /** Steps out of the function call. */
        stepOut?: () => Promise<void>;

        /** Steps over the statement. */
        stepOver?: () => Promise<void>;

    }

    export interface DebuggerClient extends DebuggerCommands {
        /** Fired when breakpoint is resolved to an actual script and location. */
        onBreakpointResolved(handler: (params: Debugger.BreakpointResolvedEvent) => void): void;

        /** Fired when the virtual machine stopped on breakpoint or exception or any other stop criteria. */
        onPaused(handler: (params: Debugger.PausedEvent) => void): void;

        /** Fired when the virtual machine resumed execution. */
        onResumed(handler: () => void): void;

        /** Fired when virtual machine fails to parse the script. */
        onScriptFailedToParse(handler: (params: Debugger.ScriptFailedToParseEvent) => void): void;

        /** Fired when virtual machine parses script. This event is also fired for all known and uncollected
scripts upon enabling debugger. */
        onScriptParsed(handler: (params: Debugger.ScriptParsedEvent) => void): void;

    }

    export interface DebuggerServer {
        /** Fired when breakpoint is resolved to an actual script and location. */
        emitBreakpointResolved(params: Debugger.BreakpointResolvedEvent): void;

        /** Fired when the virtual machine stopped on breakpoint or exception or any other stop criteria. */
        emitPaused(params: Debugger.PausedEvent): void;

        /** Fired when the virtual machine resumed execution. */
        emitResumed(): void;

        /** Fired when virtual machine fails to parse the script. */
        emitScriptFailedToParse(params: Debugger.ScriptFailedToParseEvent): void;

        /** Fired when virtual machine parses script. This event is also fired for all known and uncollected
scripts upon enabling debugger. */
        emitScriptParsed(params: Debugger.ScriptParsedEvent): void;

        expose(domain: DebuggerCommands): void;

    }

    export module HeapProfiler {

        /** Heap snapshot object id. */
        export type HeapSnapshotObjectId = string;

        /** Sampling Heap Profile node. Holds callsite information, allocation statistics and child nodes. */
        export interface SamplingHeapProfileNode {
            /** Function location. */
            callFrame: Runtime.CallFrame;

            /** Allocations size in bytes for the node excluding children. */
            selfSize: number;

            /** Child nodes. */
            children: SamplingHeapProfileNode[];

        }

        /** Profile. */
        export interface SamplingHeapProfile {
            head: SamplingHeapProfileNode;

        }

        export interface AddInspectedHeapObjectRequest {
            /** Heap snapshot object id to be accessible by means of $x command line API. */
            heapObjectId: HeapSnapshotObjectId;

        }

        export interface GetHeapObjectIdRequest {
            /** Identifier of the object to get heap object id for. */
            objectId: Runtime.RemoteObjectId;

        }

        export interface GetHeapObjectIdResponse {
            /** Id of the heap snapshot object corresponding to the passed remote object id. */
            heapSnapshotObjectId: HeapSnapshotObjectId;

        }

        export interface GetObjectByHeapObjectIdRequest {
            objectId: HeapSnapshotObjectId;

            /** Symbolic group name that can be used to release multiple objects. */
            objectGroup?: string;

        }

        export interface GetObjectByHeapObjectIdResponse {
            /** Evaluation result. */
            result: Runtime.RemoteObject;

        }

        export interface GetSamplingProfileResponse {
            /** Return the sampling profile being collected. */
            profile: SamplingHeapProfile;

        }

        export interface StartSamplingRequest {
            /** Average sample interval in bytes. Poisson distribution is used for the intervals. The
default value is 32768 bytes. */
            samplingInterval?: number;

        }

        export interface StartTrackingHeapObjectsRequest {
            trackAllocations?: boolean;

        }

        export interface StopSamplingResponse {
            /** Recorded sampling heap profile. */
            profile: SamplingHeapProfile;

        }

        export interface StopTrackingHeapObjectsRequest {
            /** If true 'reportHeapSnapshotProgress' events will be generated while snapshot is being taken
when the tracking is stopped. */
            reportProgress?: boolean;

        }

        export interface TakeHeapSnapshotRequest {
            /** If true 'reportHeapSnapshotProgress' events will be generated while snapshot is being taken. */
            reportProgress?: boolean;

        }

        export interface AddHeapSnapshotChunkEvent {
            chunk: string;

        }

        export interface HeapStatsUpdateEvent {
            /** An array of triplets. Each triplet describes a fragment. The first integer is the fragment
index, the second integer is a total count of objects for the fragment, the third integer is
a total size of the objects for the fragment. */
            statsUpdate: integer[];

        }

        export interface LastSeenObjectIdEvent {
            lastSeenObjectId: integer;

            timestamp: number;

        }

        export interface ReportHeapSnapshotProgressEvent {
            done: integer;

            total: integer;

            finished?: boolean;

        }
    }

    export interface HeapProfilerCommands {
        /** Enables console to refer to the node with given id via $x (see Command Line API for more details
$x functions). */
        addInspectedHeapObject?: (params: HeapProfiler.AddInspectedHeapObjectRequest) => Promise<void>;

        collectGarbage?: () => Promise<void>;

        disable?: () => Promise<void>;

        enable?: () => Promise<void>;

        getHeapObjectId?: (params: HeapProfiler.GetHeapObjectIdRequest) => Promise<HeapProfiler.GetHeapObjectIdResponse>;

        getObjectByHeapObjectId?: (params: HeapProfiler.GetObjectByHeapObjectIdRequest) => Promise<HeapProfiler.GetObjectByHeapObjectIdResponse>;

        getSamplingProfile?: () => Promise<HeapProfiler.GetSamplingProfileResponse>;

        startSampling?: (params: HeapProfiler.StartSamplingRequest) => Promise<void>;

        startTrackingHeapObjects?: (params: HeapProfiler.StartTrackingHeapObjectsRequest) => Promise<void>;

        stopSampling?: () => Promise<HeapProfiler.StopSamplingResponse>;

        stopTrackingHeapObjects?: (params: HeapProfiler.StopTrackingHeapObjectsRequest) => Promise<void>;

        takeHeapSnapshot?: (params: HeapProfiler.TakeHeapSnapshotRequest) => Promise<void>;

    }

    export interface HeapProfilerClient extends HeapProfilerCommands {
        onAddHeapSnapshotChunk(handler: (params: HeapProfiler.AddHeapSnapshotChunkEvent) => void): void;

        /** If heap objects tracking has been started then backend may send update for one or more fragments */
        onHeapStatsUpdate(handler: (params: HeapProfiler.HeapStatsUpdateEvent) => void): void;

        /** If heap objects tracking has been started then backend regularly sends a current value for last
seen object id and corresponding timestamp. If the were changes in the heap since last event
then one or more heapStatsUpdate events will be sent before a new lastSeenObjectId event. */
        onLastSeenObjectId(handler: (params: HeapProfiler.LastSeenObjectIdEvent) => void): void;

        onReportHeapSnapshotProgress(handler: (params: HeapProfiler.ReportHeapSnapshotProgressEvent) => void): void;

        onResetProfiles(handler: () => void): void;

    }

    export interface HeapProfilerServer {
        emitAddHeapSnapshotChunk(params: HeapProfiler.AddHeapSnapshotChunkEvent): void;

        /** If heap objects tracking has been started then backend may send update for one or more fragments */
        emitHeapStatsUpdate(params: HeapProfiler.HeapStatsUpdateEvent): void;

        /** If heap objects tracking has been started then backend regularly sends a current value for last
seen object id and corresponding timestamp. If the were changes in the heap since last event
then one or more heapStatsUpdate events will be sent before a new lastSeenObjectId event. */
        emitLastSeenObjectId(params: HeapProfiler.LastSeenObjectIdEvent): void;

        emitReportHeapSnapshotProgress(params: HeapProfiler.ReportHeapSnapshotProgressEvent): void;

        emitResetProfiles(): void;

        expose(domain: HeapProfilerCommands): void;

    }

    export module Profiler {

        /** Profile node. Holds callsite information, execution statistics and child nodes. */
        export interface ProfileNode {
            /** Unique id of the node. */
            id: integer;

            /** Function location. */
            callFrame: Runtime.CallFrame;

            /** Number of samples where this node was on top of the call stack. */
            hitCount?: integer;

            /** Child node ids. */
            children?: integer[];

            /** The reason of being not optimized. The function may be deoptimized or marked as don't
optimize. */
            deoptReason?: string;

            /** An array of source position ticks. */
            positionTicks?: PositionTickInfo[];

        }

        /** Profile. */
        export interface Profile {
            /** The list of profile nodes. First item is the root node. */
            nodes: ProfileNode[];

            /** Profiling start timestamp in microseconds. */
            startTime: number;

            /** Profiling end timestamp in microseconds. */
            endTime: number;

            /** Ids of samples top nodes. */
            samples?: integer[];

            /** Time intervals between adjacent samples in microseconds. The first delta is relative to the
profile startTime. */
            timeDeltas?: integer[];

        }

        /** Specifies a number of samples attributed to a certain source position. */
        export interface PositionTickInfo {
            /** Source line number (1-based). */
            line: integer;

            /** Number of samples attributed to the source line. */
            ticks: integer;

        }

        /** Coverage data for a source range. */
        export interface CoverageRange {
            /** JavaScript script source offset for the range start. */
            startOffset: integer;

            /** JavaScript script source offset for the range end. */
            endOffset: integer;

            /** Collected execution count of the source range. */
            count: integer;

        }

        /** Coverage data for a JavaScript function. */
        export interface FunctionCoverage {
            /** JavaScript function name. */
            functionName: string;

            /** Source ranges inside the function with coverage data. */
            ranges: CoverageRange[];

            /** Whether coverage data for this function has block granularity. */
            isBlockCoverage: boolean;

        }

        /** Coverage data for a JavaScript script. */
        export interface ScriptCoverage {
            /** JavaScript script id. */
            scriptId: Runtime.ScriptId;

            /** JavaScript script name or url. */
            url: string;

            /** Functions contained in the script that has coverage data. */
            functions: FunctionCoverage[];

        }

        /** Describes a type collected during runtime. */
        export interface TypeObject {
            /** Name of a type collected with type profiling. */
            name: string;

        }

        /** Source offset and types for a parameter or return value. */
        export interface TypeProfileEntry {
            /** Source offset of the parameter or end of function for return values. */
            offset: integer;

            /** The types for this parameter or return value. */
            types: TypeObject[];

        }

        /** Type profile data collected during runtime for a JavaScript script. */
        export interface ScriptTypeProfile {
            /** JavaScript script id. */
            scriptId: Runtime.ScriptId;

            /** JavaScript script name or url. */
            url: string;

            /** Type profile entries for parameters and return values of the functions in the script. */
            entries: TypeProfileEntry[];

        }

        export interface GetBestEffortCoverageResponse {
            /** Coverage data for the current isolate. */
            result: ScriptCoverage[];

        }

        export interface SetSamplingIntervalRequest {
            /** New sampling interval in microseconds. */
            interval: integer;

        }

        export interface StartPreciseCoverageRequest {
            /** Collect accurate call counts beyond simple 'covered' or 'not covered'. */
            callCount?: boolean;

            /** Collect block-based coverage. */
            detailed?: boolean;

        }

        export interface StopResponse {
            /** Recorded profile. */
            profile: Profile;

        }

        export interface TakePreciseCoverageResponse {
            /** Coverage data for the current isolate. */
            result: ScriptCoverage[];

        }

        export interface TakeTypeProfileResponse {
            /** Type profile for all scripts since startTypeProfile() was turned on. */
            result: ScriptTypeProfile[];

        }

        export interface ConsoleProfileFinishedEvent {
            id: string;

            /** Location of console.profileEnd(). */
            location: Debugger.Location;

            profile: Profile;

            /** Profile title passed as an argument to console.profile(). */
            title?: string;

        }

        export interface ConsoleProfileStartedEvent {
            id: string;

            /** Location of console.profile(). */
            location: Debugger.Location;

            /** Profile title passed as an argument to console.profile(). */
            title?: string;

        }
    }

    export interface ProfilerCommands {
        disable?: () => Promise<void>;

        enable?: () => Promise<void>;

        /** Collect coverage data for the current isolate. The coverage data may be incomplete due to
garbage collection. */
        getBestEffortCoverage?: () => Promise<Profiler.GetBestEffortCoverageResponse>;

        /** Changes CPU profiler sampling interval. Must be called before CPU profiles recording started. */
        setSamplingInterval?: (params: Profiler.SetSamplingIntervalRequest) => Promise<void>;

        start?: () => Promise<void>;

        /** Enable precise code coverage. Coverage data for JavaScript executed before enabling precise code
coverage may be incomplete. Enabling prevents running optimized code and resets execution
counters. */
        startPreciseCoverage?: (params: Profiler.StartPreciseCoverageRequest) => Promise<void>;

        /** Enable type profile. */
        startTypeProfile?: () => Promise<void>;

        stop?: () => Promise<Profiler.StopResponse>;

        /** Disable precise code coverage. Disabling releases unnecessary execution count records and allows
executing optimized code. */
        stopPreciseCoverage?: () => Promise<void>;

        /** Disable type profile. Disabling releases type profile data collected so far. */
        stopTypeProfile?: () => Promise<void>;

        /** Collect coverage data for the current isolate, and resets execution counters. Precise code
coverage needs to have started. */
        takePreciseCoverage?: () => Promise<Profiler.TakePreciseCoverageResponse>;

        /** Collect type profile. */
        takeTypeProfile?: () => Promise<Profiler.TakeTypeProfileResponse>;

    }

    export interface ProfilerClient extends ProfilerCommands {
        onConsoleProfileFinished(handler: (params: Profiler.ConsoleProfileFinishedEvent) => void): void;

        /** Sent when new profile recording is started using console.profile() call. */
        onConsoleProfileStarted(handler: (params: Profiler.ConsoleProfileStartedEvent) => void): void;

    }

    export interface ProfilerServer {
        emitConsoleProfileFinished(params: Profiler.ConsoleProfileFinishedEvent): void;

        /** Sent when new profile recording is started using console.profile() call. */
        emitConsoleProfileStarted(params: Profiler.ConsoleProfileStartedEvent): void;

        expose(domain: ProfilerCommands): void;

    }

    /** Runtime domain exposes JavaScript runtime by means of remote evaluation and mirror objects.
Evaluation results are returned as mirror object that expose object type, string representation
and unique identifier that can be used for further object reference. Original objects are
maintained in memory unless they are either explicitly released or are released along with the
other objects in their object group. */
    export module Runtime {

        /** Unique script identifier. */
        export type ScriptId = string;

        /** Unique object identifier. */
        export type RemoteObjectId = string;

        /** Primitive value which cannot be JSON-stringified. */
        export type UnserializableValue = ('Infinity' | 'NaN' | '-Infinity' | '-0');

        /** Mirror object referencing original JavaScript object. */
        export interface RemoteObject {
            /** Object type. */
            type: ('object' | 'function' | 'undefined' | 'string' | 'number' | 'boolean' | 'symbol');

            /** Object subtype hint. Specified for `object` type values only. */
            subtype?: ('array' | 'null' | 'node' | 'regexp' | 'date' | 'map' | 'set' | 'weakmap' | 'weakset' | 'iterator' | 'generator' | 'error' | 'proxy' | 'promise' | 'typedarray');

            /** Object class (constructor) name. Specified for `object` type values only. */
            className?: string;

            /** Remote object value in case of primitive values or JSON values (if it was requested). */
            value?: any;

            /** Primitive value which can not be JSON-stringified does not have `value`, but gets this
property. */
            unserializableValue?: UnserializableValue;

            /** String representation of the object. */
            description?: string;

            /** Unique object identifier (for non-primitive values). */
            objectId?: RemoteObjectId;

            /** Preview containing abbreviated property values. Specified for `object` type values only. */
            preview?: ObjectPreview;

            customPreview?: CustomPreview;

        }

        export interface CustomPreview {
            header: string;

            hasBody: boolean;

            formatterObjectId: RemoteObjectId;

            bindRemoteObjectFunctionId: RemoteObjectId;

            configObjectId?: RemoteObjectId;

        }

        /** Object containing abbreviated remote object value. */
        export interface ObjectPreview {
            /** Object type. */
            type: ('object' | 'function' | 'undefined' | 'string' | 'number' | 'boolean' | 'symbol');

            /** Object subtype hint. Specified for `object` type values only. */
            subtype?: ('array' | 'null' | 'node' | 'regexp' | 'date' | 'map' | 'set' | 'weakmap' | 'weakset' | 'iterator' | 'generator' | 'error');

            /** String representation of the object. */
            description?: string;

            /** True iff some of the properties or entries of the original object did not fit. */
            overflow: boolean;

            /** List of the properties. */
            properties: PropertyPreview[];

            /** List of the entries. Specified for `map` and `set` subtype values only. */
            entries?: EntryPreview[];

        }

        export interface PropertyPreview {
            /** Property name. */
            name: string;

            /** Object type. Accessor means that the property itself is an accessor property. */
            type: ('object' | 'function' | 'undefined' | 'string' | 'number' | 'boolean' | 'symbol' | 'accessor');

            /** User-friendly property value string. */
            value?: string;

            /** Nested value preview. */
            valuePreview?: ObjectPreview;

            /** Object subtype hint. Specified for `object` type values only. */
            subtype?: ('array' | 'null' | 'node' | 'regexp' | 'date' | 'map' | 'set' | 'weakmap' | 'weakset' | 'iterator' | 'generator' | 'error');

        }

        export interface EntryPreview {
            /** Preview of the key. Specified for map-like collection entries. */
            key?: ObjectPreview;

            /** Preview of the value. */
            value: ObjectPreview;

        }

        /** Object property descriptor. */
        export interface PropertyDescriptor {
            /** Property name or symbol description. */
            name: string;

            /** The value associated with the property. */
            value?: RemoteObject;

            /** True if the value associated with the property may be changed (data descriptors only). */
            writable?: boolean;

            /** A function which serves as a getter for the property, or `undefined` if there is no getter
(accessor descriptors only). */
            get?: RemoteObject;

            /** A function which serves as a setter for the property, or `undefined` if there is no setter
(accessor descriptors only). */
            set?: RemoteObject;

            /** True if the type of this property descriptor may be changed and if the property may be
deleted from the corresponding object. */
            configurable: boolean;

            /** True if this property shows up during enumeration of the properties on the corresponding
object. */
            enumerable: boolean;

            /** True if the result was thrown during the evaluation. */
            wasThrown?: boolean;

            /** True if the property is owned for the object. */
            isOwn?: boolean;

            /** Property symbol object, if the property is of the `symbol` type. */
            symbol?: RemoteObject;

        }

        /** Object internal property descriptor. This property isn't normally visible in JavaScript code. */
        export interface InternalPropertyDescriptor {
            /** Conventional property name. */
            name: string;

            /** The value associated with the property. */
            value?: RemoteObject;

        }

        /** Represents function call argument. Either remote object id `objectId`, primitive `value`,
unserializable primitive value or neither of (for undefined) them should be specified. */
        export interface CallArgument {
            /** Primitive value or serializable javascript object. */
            value?: any;

            /** Primitive value which can not be JSON-stringified. */
            unserializableValue?: UnserializableValue;

            /** Remote object handle. */
            objectId?: RemoteObjectId;

        }

        /** Id of an execution context. */
        export type ExecutionContextId = integer;

        /** Description of an isolated world. */
        export interface ExecutionContextDescription {
            /** Unique id of the execution context. It can be used to specify in which execution context
script evaluation should be performed. */
            id: ExecutionContextId;

            /** Execution context origin. */
            origin: string;

            /** Human readable name describing given context. */
            name: string;

            /** Embedder-specific auxiliary data. */
            auxData?: any;

        }

        /** Detailed information about exception (or error) that was thrown during script compilation or
execution. */
        export interface ExceptionDetails {
            /** Exception id. */
            exceptionId: integer;

            /** Exception text, which should be used together with exception object when available. */
            text: string;

            /** Line number of the exception location (0-based). */
            lineNumber: integer;

            /** Column number of the exception location (0-based). */
            columnNumber: integer;

            /** Script ID of the exception location. */
            scriptId?: ScriptId;

            /** URL of the exception location, to be used when the script was not reported. */
            url?: string;

            /** JavaScript stack trace if available. */
            stackTrace?: StackTrace;

            /** Exception object if available. */
            exception?: RemoteObject;

            /** Identifier of the context where exception happened. */
            executionContextId?: ExecutionContextId;

        }

        /** Number of milliseconds since epoch. */
        export type Timestamp = number;

        /** Stack entry for runtime errors and assertions. */
        export interface CallFrame {
            /** JavaScript function name. */
            functionName: string;

            /** JavaScript script id. */
            scriptId: ScriptId;

            /** JavaScript script name or url. */
            url: string;

            /** JavaScript script line number (0-based). */
            lineNumber: integer;

            /** JavaScript script column number (0-based). */
            columnNumber: integer;

        }

        /** Call frames for assertions or error messages. */
        export interface StackTrace {
            /** String label of this stack trace. For async traces this may be a name of the function that
initiated the async call. */
            description?: string;

            /** JavaScript function name. */
            callFrames: CallFrame[];

            /** Asynchronous JavaScript stack trace that preceded this stack, if available. */
            parent?: StackTrace;

            /** Asynchronous JavaScript stack trace that preceded this stack, if available. */
            parentId?: StackTraceId;

        }

        /** Unique identifier of current debugger. */
        export type UniqueDebuggerId = string;

        /** If `debuggerId` is set stack trace comes from another debugger and can be resolved there. This
allows to track cross-debugger calls. See `Runtime.StackTrace` and `Debugger.paused` for usages. */
        export interface StackTraceId {
            id: string;

            debuggerId?: UniqueDebuggerId;

        }

        export interface AwaitPromiseRequest {
            /** Identifier of the promise. */
            promiseObjectId: RemoteObjectId;

            /** Whether the result is expected to be a JSON object that should be sent by value. */
            returnByValue?: boolean;

            /** Whether preview should be generated for the result. */
            generatePreview?: boolean;

        }

        export interface AwaitPromiseResponse {
            /** Promise result. Will contain rejected value if promise was rejected. */
            result: RemoteObject;

            /** Exception details if stack strace is available. */
            exceptionDetails?: ExceptionDetails;

        }

        export interface CallFunctionOnRequest {
            /** Declaration of the function to call. */
            functionDeclaration: string;

            /** Identifier of the object to call function on. Either objectId or executionContextId should
be specified. */
            objectId?: RemoteObjectId;

            /** Call arguments. All call arguments must belong to the same JavaScript world as the target
object. */
            arguments?: CallArgument[];

            /** In silent mode exceptions thrown during evaluation are not reported and do not pause
execution. Overrides `setPauseOnException` state. */
            silent?: boolean;

            /** Whether the result is expected to be a JSON object which should be sent by value. */
            returnByValue?: boolean;

            /** Whether preview should be generated for the result. */
            generatePreview?: boolean;

            /** Whether execution should be treated as initiated by user in the UI. */
            userGesture?: boolean;

            /** Whether execution should `await` for resulting value and return once awaited promise is
resolved. */
            awaitPromise?: boolean;

            /** Specifies execution context which global object will be used to call function on. Either
executionContextId or objectId should be specified. */
            executionContextId?: ExecutionContextId;

            /** Symbolic group name that can be used to release multiple objects. If objectGroup is not
specified and objectId is, objectGroup will be inherited from object. */
            objectGroup?: string;

        }

        export interface CallFunctionOnResponse {
            /** Call result. */
            result: RemoteObject;

            /** Exception details. */
            exceptionDetails?: ExceptionDetails;

        }

        export interface CompileScriptRequest {
            /** Expression to compile. */
            expression: string;

            /** Source url to be set for the script. */
            sourceURL: string;

            /** Specifies whether the compiled script should be persisted. */
            persistScript: boolean;

            /** Specifies in which execution context to perform script run. If the parameter is omitted the
evaluation will be performed in the context of the inspected page. */
            executionContextId?: ExecutionContextId;

        }

        export interface CompileScriptResponse {
            /** Id of the script. */
            scriptId?: ScriptId;

            /** Exception details. */
            exceptionDetails?: ExceptionDetails;

        }

        export interface EvaluateRequest {
            /** Expression to evaluate. */
            expression: string;

            /** Symbolic group name that can be used to release multiple objects. */
            objectGroup?: string;

            /** Determines whether Command Line API should be available during the evaluation. */
            includeCommandLineAPI?: boolean;

            /** In silent mode exceptions thrown during evaluation are not reported and do not pause
execution. Overrides `setPauseOnException` state. */
            silent?: boolean;

            /** Specifies in which execution context to perform evaluation. If the parameter is omitted the
evaluation will be performed in the context of the inspected page. */
            contextId?: ExecutionContextId;

            /** Whether the result is expected to be a JSON object that should be sent by value. */
            returnByValue?: boolean;

            /** Whether preview should be generated for the result. */
            generatePreview?: boolean;

            /** Whether execution should be treated as initiated by user in the UI. */
            userGesture?: boolean;

            /** Whether execution should `await` for resulting value and return once awaited promise is
resolved. */
            awaitPromise?: boolean;

        }

        export interface EvaluateResponse {
            /** Evaluation result. */
            result: RemoteObject;

            /** Exception details. */
            exceptionDetails?: ExceptionDetails;

        }

        export interface GetPropertiesRequest {
            /** Identifier of the object to return properties for. */
            objectId: RemoteObjectId;

            /** If true, returns properties belonging only to the element itself, not to its prototype
chain. */
            ownProperties?: boolean;

            /** If true, returns accessor properties (with getter/setter) only; internal properties are not
returned either. */
            accessorPropertiesOnly?: boolean;

            /** Whether preview should be generated for the results. */
            generatePreview?: boolean;

        }

        export interface GetPropertiesResponse {
            /** Object properties. */
            result: PropertyDescriptor[];

            /** Internal object properties (only of the element itself). */
            internalProperties?: InternalPropertyDescriptor[];

            /** Exception details. */
            exceptionDetails?: ExceptionDetails;

        }

        export interface GlobalLexicalScopeNamesRequest {
            /** Specifies in which execution context to lookup global scope variables. */
            executionContextId?: ExecutionContextId;

        }

        export interface GlobalLexicalScopeNamesResponse {
            names: string[];

        }

        export interface QueryObjectsRequest {
            /** Identifier of the prototype to return objects for. */
            prototypeObjectId: RemoteObjectId;

        }

        export interface QueryObjectsResponse {
            /** Array with objects. */
            objects: RemoteObject;

        }

        export interface ReleaseObjectRequest {
            /** Identifier of the object to release. */
            objectId: RemoteObjectId;

        }

        export interface ReleaseObjectGroupRequest {
            /** Symbolic object group name. */
            objectGroup: string;

        }

        export interface RunScriptRequest {
            /** Id of the script to run. */
            scriptId: ScriptId;

            /** Specifies in which execution context to perform script run. If the parameter is omitted the
evaluation will be performed in the context of the inspected page. */
            executionContextId?: ExecutionContextId;

            /** Symbolic group name that can be used to release multiple objects. */
            objectGroup?: string;

            /** In silent mode exceptions thrown during evaluation are not reported and do not pause
execution. Overrides `setPauseOnException` state. */
            silent?: boolean;

            /** Determines whether Command Line API should be available during the evaluation. */
            includeCommandLineAPI?: boolean;

            /** Whether the result is expected to be a JSON object which should be sent by value. */
            returnByValue?: boolean;

            /** Whether preview should be generated for the result. */
            generatePreview?: boolean;

            /** Whether execution should `await` for resulting value and return once awaited promise is
resolved. */
            awaitPromise?: boolean;

        }

        export interface RunScriptResponse {
            /** Run result. */
            result: RemoteObject;

            /** Exception details. */
            exceptionDetails?: ExceptionDetails;

        }

        export interface SetCustomObjectFormatterEnabledRequest {
            enabled: boolean;

        }

        export interface ConsoleAPICalledEvent {
            /** Type of the call. */
            type: ('log' | 'debug' | 'info' | 'error' | 'warning' | 'dir' | 'dirxml' | 'table' | 'trace' | 'clear' | 'startGroup' | 'startGroupCollapsed' | 'endGroup' | 'assert' | 'profile' | 'profileEnd' | 'count' | 'timeEnd');

            /** Call arguments. */
            args: RemoteObject[];

            /** Identifier of the context where the call was made. */
            executionContextId: ExecutionContextId;

            /** Call timestamp. */
            timestamp: Timestamp;

            /** Stack trace captured when the call was made. */
            stackTrace?: StackTrace;

            /** Console context descriptor for calls on non-default console context (not console.*):
'anonymous#unique-logger-id' for call on unnamed context, 'name#unique-logger-id' for call
on named context. */
            context?: string;

        }

        export interface ExceptionRevokedEvent {
            /** Reason describing why exception was revoked. */
            reason: string;

            /** The id of revoked exception, as reported in `exceptionThrown`. */
            exceptionId: integer;

        }

        export interface ExceptionThrownEvent {
            /** Timestamp of the exception. */
            timestamp: Timestamp;

            exceptionDetails: ExceptionDetails;

        }

        export interface ExecutionContextCreatedEvent {
            /** A newly created execution context. */
            context: ExecutionContextDescription;

        }

        export interface ExecutionContextDestroyedEvent {
            /** Id of the destroyed context */
            executionContextId: ExecutionContextId;

        }

        export interface InspectRequestedEvent {
            object: RemoteObject;

            hints: any;

        }
    }

    export interface RuntimeCommands {
        /** Add handler to promise with given promise object id. */
        awaitPromise?: (params: Runtime.AwaitPromiseRequest) => Promise<Runtime.AwaitPromiseResponse>;

        /** Calls function with given declaration on the given object. Object group of the result is
inherited from the target object. */
        callFunctionOn?: (params: Runtime.CallFunctionOnRequest) => Promise<Runtime.CallFunctionOnResponse>;

        /** Compiles expression. */
        compileScript?: (params: Runtime.CompileScriptRequest) => Promise<Runtime.CompileScriptResponse>;

        /** Disables reporting of execution contexts creation. */
        disable?: () => Promise<void>;

        /** Discards collected exceptions and console API calls. */
        discardConsoleEntries?: () => Promise<void>;

        /** Enables reporting of execution contexts creation by means of `executionContextCreated` event.
When the reporting gets enabled the event will be sent immediately for each existing execution
context. */
        enable?: () => Promise<void>;

        /** Evaluates expression on global object. */
        evaluate?: (params: Runtime.EvaluateRequest) => Promise<Runtime.EvaluateResponse>;

        /** Returns properties of a given object. Object group of the result is inherited from the target
object. */
        getProperties?: (params: Runtime.GetPropertiesRequest) => Promise<Runtime.GetPropertiesResponse>;

        /** Returns all let, const and class variables from global scope. */
        globalLexicalScopeNames?: (params: Runtime.GlobalLexicalScopeNamesRequest) => Promise<Runtime.GlobalLexicalScopeNamesResponse>;

        queryObjects?: (params: Runtime.QueryObjectsRequest) => Promise<Runtime.QueryObjectsResponse>;

        /** Releases remote object with given id. */
        releaseObject?: (params: Runtime.ReleaseObjectRequest) => Promise<void>;

        /** Releases all remote objects that belong to a given group. */
        releaseObjectGroup?: (params: Runtime.ReleaseObjectGroupRequest) => Promise<void>;

        /** Tells inspected instance to run if it was waiting for debugger to attach. */
        runIfWaitingForDebugger?: () => Promise<void>;

        /** Runs script with given id in a given context. */
        runScript?: (params: Runtime.RunScriptRequest) => Promise<Runtime.RunScriptResponse>;

        setCustomObjectFormatterEnabled?: (params: Runtime.SetCustomObjectFormatterEnabledRequest) => Promise<void>;

    }

    export interface RuntimeClient extends RuntimeCommands {
        /** Issued when console API was called. */
        onConsoleAPICalled(handler: (params: Runtime.ConsoleAPICalledEvent) => void): void;

        /** Issued when unhandled exception was revoked. */
        onExceptionRevoked(handler: (params: Runtime.ExceptionRevokedEvent) => void): void;

        /** Issued when exception was thrown and unhandled. */
        onExceptionThrown(handler: (params: Runtime.ExceptionThrownEvent) => void): void;

        /** Issued when new execution context is created. */
        onExecutionContextCreated(handler: (params: Runtime.ExecutionContextCreatedEvent) => void): void;

        /** Issued when execution context is destroyed. */
        onExecutionContextDestroyed(handler: (params: Runtime.ExecutionContextDestroyedEvent) => void): void;

        /** Issued when all executionContexts were cleared in browser */
        onExecutionContextsCleared(handler: () => void): void;

        /** Issued when object should be inspected (for example, as a result of inspect() command line API
call). */
        onInspectRequested(handler: (params: Runtime.InspectRequestedEvent) => void): void;

    }

    export interface RuntimeServer {
        /** Issued when console API was called. */
        emitConsoleAPICalled(params: Runtime.ConsoleAPICalledEvent): void;

        /** Issued when unhandled exception was revoked. */
        emitExceptionRevoked(params: Runtime.ExceptionRevokedEvent): void;

        /** Issued when exception was thrown and unhandled. */
        emitExceptionThrown(params: Runtime.ExceptionThrownEvent): void;

        /** Issued when new execution context is created. */
        emitExecutionContextCreated(params: Runtime.ExecutionContextCreatedEvent): void;

        /** Issued when execution context is destroyed. */
        emitExecutionContextDestroyed(params: Runtime.ExecutionContextDestroyedEvent): void;

        /** Issued when all executionContexts were cleared in browser */
        emitExecutionContextsCleared(): void;

        /** Issued when object should be inspected (for example, as a result of inspect() command line API
call). */
        emitInspectRequested(params: Runtime.InspectRequestedEvent): void;

        expose(domain: RuntimeCommands): void;

    }

    /** This domain is deprecated. */
    export module Schema {

        /** Description of the protocol domain. */
        export interface Domain {
            /** Domain name. */
            name: string;

            /** Domain version. */
            version: string;

        }

        export interface GetDomainsResponse {
            /** List of supported domains. */
            domains: Domain[];

        }
    }

    export interface SchemaCommands {
        /** Returns supported domains. */
        getDomains?: () => Promise<Schema.GetDomainsResponse>;

    }

    export interface SchemaClient extends SchemaCommands {
    }

    export interface SchemaServer {
        expose(domain: SchemaCommands): void;

    }

    export module Accessibility {

        /** Unique accessibility node identifier. */
        export type AXNodeId = string;

        /** Enum of possible property types. */
        export type AXValueType = ('boolean' | 'tristate' | 'booleanOrUndefined' | 'idref' | 'idrefList' | 'integer' | 'node' | 'nodeList' | 'number' | 'string' | 'computedString' | 'token' | 'tokenList' | 'domRelation' | 'role' | 'internalRole' | 'valueUndefined');

        /** Enum of possible property sources. */
        export type AXValueSourceType = ('attribute' | 'implicit' | 'style' | 'contents' | 'placeholder' | 'relatedElement');

        /** Enum of possible native property sources (as a subtype of a particular AXValueSourceType). */
        export type AXValueNativeSourceType = ('figcaption' | 'label' | 'labelfor' | 'labelwrapped' | 'legend' | 'tablecaption' | 'title' | 'other');

        /** A single source for a computed AX property. */
        export interface AXValueSource {
            /** What type of source this is. */
            type: AXValueSourceType;

            /** The value of this property source. */
            value?: AXValue;

            /** The name of the relevant attribute, if any. */
            attribute?: string;

            /** The value of the relevant attribute, if any. */
            attributeValue?: AXValue;

            /** Whether this source is superseded by a higher priority source. */
            superseded?: boolean;

            /** The native markup source for this value, e.g. a <label> element. */
            nativeSource?: AXValueNativeSourceType;

            /** The value, such as a node or node list, of the native source. */
            nativeSourceValue?: AXValue;

            /** Whether the value for this property is invalid. */
            invalid?: boolean;

            /** Reason for the value being invalid, if it is. */
            invalidReason?: string;

        }

        export interface AXRelatedNode {
            /** The BackendNodeId of the related DOM node. */
            backendDOMNodeId: DOM.BackendNodeId;

            /** The IDRef value provided, if any. */
            idref?: string;

            /** The text alternative of this node in the current context. */
            text?: string;

        }

        export interface AXProperty {
            /** The name of this property. */
            name: AXPropertyName;

            /** The value of this property. */
            value: AXValue;

        }

        /** A single computed AX property. */
        export interface AXValue {
            /** The type of this value. */
            type: AXValueType;

            /** The computed value of this property. */
            value?: any;

            /** One or more related nodes, if applicable. */
            relatedNodes?: AXRelatedNode[];

            /** The sources which contributed to the computation of this property. */
            sources?: AXValueSource[];

        }

        /** Values of AXProperty name: from 'busy' to 'roledescription' - states which apply to every AX
node, from 'live' to 'root' - attributes which apply to nodes in live regions, from
'autocomplete' to 'valuetext' - attributes which apply to widgets, from 'checked' to 'selected'
- states which apply to widgets, from 'activedescendant' to 'owns' - relationships between
elements other than parent/child/sibling. */
        export type AXPropertyName = ('busy' | 'disabled' | 'hidden' | 'hiddenRoot' | 'invalid' | 'keyshortcuts' | 'roledescription' | 'live' | 'atomic' | 'relevant' | 'root' | 'autocomplete' | 'haspopup' | 'level' | 'multiselectable' | 'orientation' | 'multiline' | 'readonly' | 'required' | 'valuemin' | 'valuemax' | 'valuetext' | 'checked' | 'expanded' | 'modal' | 'pressed' | 'selected' | 'activedescendant' | 'controls' | 'describedby' | 'details' | 'errormessage' | 'flowto' | 'labelledby' | 'owns');

        /** A node in the accessibility tree. */
        export interface AXNode {
            /** Unique identifier for this node. */
            nodeId: AXNodeId;

            /** Whether this node is ignored for accessibility */
            ignored: boolean;

            /** Collection of reasons why this node is hidden. */
            ignoredReasons?: AXProperty[];

            /** This `Node`'s role, whether explicit or implicit. */
            role?: AXValue;

            /** The accessible name for this `Node`. */
            name?: AXValue;

            /** The accessible description for this `Node`. */
            description?: AXValue;

            /** The value for this `Node`. */
            value?: AXValue;

            /** All other properties */
            properties?: AXProperty[];

            /** IDs for each of this node's child nodes. */
            childIds?: AXNodeId[];

            /** The backend ID for the associated DOM node, if any. */
            backendDOMNodeId?: DOM.BackendNodeId;

        }

        export interface GetPartialAXTreeRequest {
            /** ID of node to get the partial accessibility tree for. */
            nodeId: DOM.NodeId;

            /** Whether to fetch this nodes ancestors, siblings and children. Defaults to true. */
            fetchRelatives?: boolean;

        }

        export interface GetPartialAXTreeResponse {
            /** The `Accessibility.AXNode` for this DOM node, if it exists, plus its ancestors, siblings and
children, if requested. */
            nodes: AXNode[];

        }
    }

    export interface AccessibilityCommands {
        /** Fetches the accessibility node and partial accessibility tree for this DOM node, if it exists. */
        getPartialAXTree?: (params: Accessibility.GetPartialAXTreeRequest) => Promise<Accessibility.GetPartialAXTreeResponse>;

    }

    export interface AccessibilityClient extends AccessibilityCommands {
    }

    export interface AccessibilityServer {
        expose(domain: AccessibilityCommands): void;

    }

    export module Animation {

        /** Animation instance. */
        export interface Animation {
            /** `Animation`'s id. */
            id: string;

            /** `Animation`'s name. */
            name: string;

            /** `Animation`'s internal paused state. */
            pausedState: boolean;

            /** `Animation`'s play state. */
            playState: string;

            /** `Animation`'s playback rate. */
            playbackRate: number;

            /** `Animation`'s start time. */
            startTime: number;

            /** `Animation`'s current time. */
            currentTime: number;

            /** Animation type of `Animation`. */
            type: ('CSSTransition' | 'CSSAnimation' | 'WebAnimation');

            /** `Animation`'s source animation node. */
            source?: AnimationEffect;

            /** A unique ID for `Animation` representing the sources that triggered this CSS
animation/transition. */
            cssId?: string;

        }

        /** AnimationEffect instance */
        export interface AnimationEffect {
            /** `AnimationEffect`'s delay. */
            delay: number;

            /** `AnimationEffect`'s end delay. */
            endDelay: number;

            /** `AnimationEffect`'s iteration start. */
            iterationStart: number;

            /** `AnimationEffect`'s iterations. */
            iterations: number;

            /** `AnimationEffect`'s iteration duration. */
            duration: number;

            /** `AnimationEffect`'s playback direction. */
            direction: string;

            /** `AnimationEffect`'s fill mode. */
            fill: string;

            /** `AnimationEffect`'s target node. */
            backendNodeId?: DOM.BackendNodeId;

            /** `AnimationEffect`'s keyframes. */
            keyframesRule?: KeyframesRule;

            /** `AnimationEffect`'s timing function. */
            easing: string;

        }

        /** Keyframes Rule */
        export interface KeyframesRule {
            /** CSS keyframed animation's name. */
            name?: string;

            /** List of animation keyframes. */
            keyframes: KeyframeStyle[];

        }

        /** Keyframe Style */
        export interface KeyframeStyle {
            /** Keyframe's time offset. */
            offset: string;

            /** `AnimationEffect`'s timing function. */
            easing: string;

        }

        export interface GetCurrentTimeRequest {
            /** Id of animation. */
            id: string;

        }

        export interface GetCurrentTimeResponse {
            /** Current time of the page. */
            currentTime: number;

        }

        export interface GetPlaybackRateResponse {
            /** Playback rate for animations on page. */
            playbackRate: number;

        }

        export interface ReleaseAnimationsRequest {
            /** List of animation ids to seek. */
            animations: string[];

        }

        export interface ResolveAnimationRequest {
            /** Animation id. */
            animationId: string;

        }

        export interface ResolveAnimationResponse {
            /** Corresponding remote object. */
            remoteObject: Runtime.RemoteObject;

        }

        export interface SeekAnimationsRequest {
            /** List of animation ids to seek. */
            animations: string[];

            /** Set the current time of each animation. */
            currentTime: number;

        }

        export interface SetPausedRequest {
            /** Animations to set the pause state of. */
            animations: string[];

            /** Paused state to set to. */
            paused: boolean;

        }

        export interface SetPlaybackRateRequest {
            /** Playback rate for animations on page */
            playbackRate: number;

        }

        export interface SetTimingRequest {
            /** Animation id. */
            animationId: string;

            /** Duration of the animation. */
            duration: number;

            /** Delay of the animation. */
            delay: number;

        }

        export interface AnimationCanceledEvent {
            /** Id of the animation that was cancelled. */
            id: string;

        }

        export interface AnimationCreatedEvent {
            /** Id of the animation that was created. */
            id: string;

        }

        export interface AnimationStartedEvent {
            /** Animation that was started. */
            animation: Animation;

        }
    }

    export interface AnimationCommands {
        /** Disables animation domain notifications. */
        disable?: () => Promise<void>;

        /** Enables animation domain notifications. */
        enable?: () => Promise<void>;

        /** Returns the current time of the an animation. */
        getCurrentTime?: (params: Animation.GetCurrentTimeRequest) => Promise<Animation.GetCurrentTimeResponse>;

        /** Gets the playback rate of the document timeline. */
        getPlaybackRate?: () => Promise<Animation.GetPlaybackRateResponse>;

        /** Releases a set of animations to no longer be manipulated. */
        releaseAnimations?: (params: Animation.ReleaseAnimationsRequest) => Promise<void>;

        /** Gets the remote object of the Animation. */
        resolveAnimation?: (params: Animation.ResolveAnimationRequest) => Promise<Animation.ResolveAnimationResponse>;

        /** Seek a set of animations to a particular time within each animation. */
        seekAnimations?: (params: Animation.SeekAnimationsRequest) => Promise<void>;

        /** Sets the paused state of a set of animations. */
        setPaused?: (params: Animation.SetPausedRequest) => Promise<void>;

        /** Sets the playback rate of the document timeline. */
        setPlaybackRate?: (params: Animation.SetPlaybackRateRequest) => Promise<void>;

        /** Sets the timing of an animation node. */
        setTiming?: (params: Animation.SetTimingRequest) => Promise<void>;

    }

    export interface AnimationClient extends AnimationCommands {
        /** Event for when an animation has been cancelled. */
        onAnimationCanceled(handler: (params: Animation.AnimationCanceledEvent) => void): void;

        /** Event for each animation that has been created. */
        onAnimationCreated(handler: (params: Animation.AnimationCreatedEvent) => void): void;

        /** Event for animation that has been started. */
        onAnimationStarted(handler: (params: Animation.AnimationStartedEvent) => void): void;

    }

    export interface AnimationServer {
        /** Event for when an animation has been cancelled. */
        emitAnimationCanceled(params: Animation.AnimationCanceledEvent): void;

        /** Event for each animation that has been created. */
        emitAnimationCreated(params: Animation.AnimationCreatedEvent): void;

        /** Event for animation that has been started. */
        emitAnimationStarted(params: Animation.AnimationStartedEvent): void;

        expose(domain: AnimationCommands): void;

    }

    export module ApplicationCache {

        /** Detailed application cache resource information. */
        export interface ApplicationCacheResource {
            /** Resource url. */
            url: string;

            /** Resource size. */
            size: integer;

            /** Resource type. */
            type: string;

        }

        /** Detailed application cache information. */
        export interface ApplicationCache {
            /** Manifest URL. */
            manifestURL: string;

            /** Application cache size. */
            size: number;

            /** Application cache creation time. */
            creationTime: number;

            /** Application cache update time. */
            updateTime: number;

            /** Application cache resources. */
            resources: ApplicationCacheResource[];

        }

        /** Frame identifier - manifest URL pair. */
        export interface FrameWithManifest {
            /** Frame identifier. */
            frameId: Page.FrameId;

            /** Manifest URL. */
            manifestURL: string;

            /** Application cache status. */
            status: integer;

        }

        export interface GetApplicationCacheForFrameRequest {
            /** Identifier of the frame containing document whose application cache is retrieved. */
            frameId: Page.FrameId;

        }

        export interface GetApplicationCacheForFrameResponse {
            /** Relevant application cache data for the document in given frame. */
            applicationCache: ApplicationCache;

        }

        export interface GetFramesWithManifestsResponse {
            /** Array of frame identifiers with manifest urls for each frame containing a document
associated with some application cache. */
            frameIds: FrameWithManifest[];

        }

        export interface GetManifestForFrameRequest {
            /** Identifier of the frame containing document whose manifest is retrieved. */
            frameId: Page.FrameId;

        }

        export interface GetManifestForFrameResponse {
            /** Manifest URL for document in the given frame. */
            manifestURL: string;

        }

        export interface ApplicationCacheStatusUpdatedEvent {
            /** Identifier of the frame containing document whose application cache updated status. */
            frameId: Page.FrameId;

            /** Manifest URL. */
            manifestURL: string;

            /** Updated application cache status. */
            status: integer;

        }

        export interface NetworkStateUpdatedEvent {
            isNowOnline: boolean;

        }
    }

    export interface ApplicationCacheCommands {
        /** Enables application cache domain notifications. */
        enable?: () => Promise<void>;

        /** Returns relevant application cache data for the document in given frame. */
        getApplicationCacheForFrame?: (params: ApplicationCache.GetApplicationCacheForFrameRequest) => Promise<ApplicationCache.GetApplicationCacheForFrameResponse>;

        /** Returns array of frame identifiers with manifest urls for each frame containing a document
associated with some application cache. */
        getFramesWithManifests?: () => Promise<ApplicationCache.GetFramesWithManifestsResponse>;

        /** Returns manifest URL for document in the given frame. */
        getManifestForFrame?: (params: ApplicationCache.GetManifestForFrameRequest) => Promise<ApplicationCache.GetManifestForFrameResponse>;

    }

    export interface ApplicationCacheClient extends ApplicationCacheCommands {
        onApplicationCacheStatusUpdated(handler: (params: ApplicationCache.ApplicationCacheStatusUpdatedEvent) => void): void;

        onNetworkStateUpdated(handler: (params: ApplicationCache.NetworkStateUpdatedEvent) => void): void;

    }

    export interface ApplicationCacheServer {
        emitApplicationCacheStatusUpdated(params: ApplicationCache.ApplicationCacheStatusUpdatedEvent): void;

        emitNetworkStateUpdated(params: ApplicationCache.NetworkStateUpdatedEvent): void;

        expose(domain: ApplicationCacheCommands): void;

    }

    /** Audits domain allows investigation of page violations and possible improvements. */
    export module Audits {

        export interface GetEncodedResponseRequest {
            /** Identifier of the network request to get content for. */
            requestId: Network.RequestId;

            /** The encoding to use. */
            encoding: ('webp' | 'jpeg' | 'png');

            /** The quality of the encoding (0-1). (defaults to 1) */
            quality?: number;

            /** Whether to only return the size information (defaults to false). */
            sizeOnly?: boolean;

        }

        export interface GetEncodedResponseResponse {
            /** The encoded body as a base64 string. Omitted if sizeOnly is true. */
            body?: string;

            /** Size before re-encoding. */
            originalSize: integer;

            /** Size after re-encoding. */
            encodedSize: integer;

        }
    }

    export interface AuditsCommands {
        /** Returns the response body and size if it were re-encoded with the specified settings. Only
applies to images. */
        getEncodedResponse?: (params: Audits.GetEncodedResponseRequest) => Promise<Audits.GetEncodedResponseResponse>;

    }

    export interface AuditsClient extends AuditsCommands {
    }

    export interface AuditsServer {
        expose(domain: AuditsCommands): void;

    }

    /** The Browser domain defines methods and events for browser managing. */
    export module Browser {

        export type WindowID = integer;

        /** The state of the browser window. */
        export type WindowState = ('normal' | 'minimized' | 'maximized' | 'fullscreen');

        /** Browser window bounds information */
        export interface Bounds {
            /** The offset from the left edge of the screen to the window in pixels. */
            left?: integer;

            /** The offset from the top edge of the screen to the window in pixels. */
            top?: integer;

            /** The window width in pixels. */
            width?: integer;

            /** The window height in pixels. */
            height?: integer;

            /** The window state. Default to normal. */
            windowState?: WindowState;

        }

        /** Chrome histogram bucket. */
        export interface Bucket {
            /** Minimum value (inclusive). */
            low: integer;

            /** Maximum value (exclusive). */
            high: integer;

            /** Number of samples. */
            count: integer;

        }

        /** Chrome histogram. */
        export interface Histogram {
            /** Name. */
            name: string;

            /** Sum of sample values. */
            sum: integer;

            /** Total number of samples. */
            count: integer;

            /** Buckets. */
            buckets: Bucket[];

        }

        export interface GetVersionResponse {
            /** Protocol version. */
            protocolVersion: string;

            /** Product name. */
            product: string;

            /** Product revision. */
            revision: string;

            /** User-Agent. */
            userAgent: string;

            /** V8 version. */
            jsVersion: string;

        }

        export interface GetHistogramsRequest {
            /** Requested substring in name. Only histograms which have query as a
substring in their name are extracted. An empty or absent query returns
all histograms. */
            query?: string;

        }

        export interface GetHistogramsResponse {
            /** Histograms. */
            histograms: Histogram[];

        }

        export interface GetHistogramRequest {
            /** Requested histogram name. */
            name: string;

        }

        export interface GetHistogramResponse {
            /** Histogram. */
            histogram: Histogram;

        }

        export interface GetWindowBoundsRequest {
            /** Browser window id. */
            windowId: WindowID;

        }

        export interface GetWindowBoundsResponse {
            /** Bounds information of the window. When window state is 'minimized', the restored window
position and size are returned. */
            bounds: Bounds;

        }

        export interface GetWindowForTargetRequest {
            /** Devtools agent host id. */
            targetId: Target.TargetID;

        }

        export interface GetWindowForTargetResponse {
            /** Browser window id. */
            windowId: WindowID;

            /** Bounds information of the window. When window state is 'minimized', the restored window
position and size are returned. */
            bounds: Bounds;

        }

        export interface SetWindowBoundsRequest {
            /** Browser window id. */
            windowId: WindowID;

            /** New window bounds. The 'minimized', 'maximized' and 'fullscreen' states cannot be combined
with 'left', 'top', 'width' or 'height'. Leaves unspecified fields unchanged. */
            bounds: Bounds;

        }
    }

    export interface BrowserCommands {
        /** Close browser gracefully. */
        close?: () => Promise<void>;

        /** Returns version information. */
        getVersion?: () => Promise<Browser.GetVersionResponse>;

        /** Get Chrome histograms. */
        getHistograms?: (params: Browser.GetHistogramsRequest) => Promise<Browser.GetHistogramsResponse>;

        /** Get a Chrome histogram by name. */
        getHistogram?: (params: Browser.GetHistogramRequest) => Promise<Browser.GetHistogramResponse>;

        /** Get position and size of the browser window. */
        getWindowBounds?: (params: Browser.GetWindowBoundsRequest) => Promise<Browser.GetWindowBoundsResponse>;

        /** Get the browser window that contains the devtools target. */
        getWindowForTarget?: (params: Browser.GetWindowForTargetRequest) => Promise<Browser.GetWindowForTargetResponse>;

        /** Set position and/or size of the browser window. */
        setWindowBounds?: (params: Browser.SetWindowBoundsRequest) => Promise<void>;

    }

    export interface BrowserClient extends BrowserCommands {
    }

    export interface BrowserServer {
        expose(domain: BrowserCommands): void;

    }

    /** This domain exposes CSS read/write operations. All CSS objects (stylesheets, rules, and styles)
have an associated `id` used in subsequent operations on the related object. Each object type has
a specific `id` structure, and those are not interchangeable between objects of different kinds.
CSS objects can be loaded using the `get*ForNode()` calls (which accept a DOM node id). A client
can also keep track of stylesheets via the `styleSheetAdded`/`styleSheetRemoved` events and
subsequently load the required stylesheet contents using the `getStyleSheet[Text]()` methods. */
    export module CSS {

        export type StyleSheetId = string;

        /** Stylesheet type: "injected" for stylesheets injected via extension, "user-agent" for user-agent
stylesheets, "inspector" for stylesheets created by the inspector (i.e. those holding the "via
inspector" rules), "regular" for regular stylesheets. */
        export type StyleSheetOrigin = ('injected' | 'user-agent' | 'inspector' | 'regular');

        /** CSS rule collection for a single pseudo style. */
        export interface PseudoElementMatches {
            /** Pseudo element type. */
            pseudoType: DOM.PseudoType;

            /** Matches of CSS rules applicable to the pseudo style. */
            matches: RuleMatch[];

        }

        /** Inherited CSS rule collection from ancestor node. */
        export interface InheritedStyleEntry {
            /** The ancestor node's inline style, if any, in the style inheritance chain. */
            inlineStyle?: CSSStyle;

            /** Matches of CSS rules matching the ancestor node in the style inheritance chain. */
            matchedCSSRules: RuleMatch[];

        }

        /** Match data for a CSS rule. */
        export interface RuleMatch {
            /** CSS rule in the match. */
            rule: CSSRule;

            /** Matching selector indices in the rule's selectorList selectors (0-based). */
            matchingSelectors: integer[];

        }

        /** Data for a simple selector (these are delimited by commas in a selector list). */
        export interface Value {
            /** Value text. */
            text: string;

            /** Value range in the underlying resource (if available). */
            range?: SourceRange;

        }

        /** Selector list data. */
        export interface SelectorList {
            /** Selectors in the list. */
            selectors: Value[];

            /** Rule selector text. */
            text: string;

        }

        /** CSS stylesheet metainformation. */
        export interface CSSStyleSheetHeader {
            /** The stylesheet identifier. */
            styleSheetId: StyleSheetId;

            /** Owner frame identifier. */
            frameId: Page.FrameId;

            /** Stylesheet resource URL. */
            sourceURL: string;

            /** URL of source map associated with the stylesheet (if any). */
            sourceMapURL?: string;

            /** Stylesheet origin. */
            origin: StyleSheetOrigin;

            /** Stylesheet title. */
            title: string;

            /** The backend id for the owner node of the stylesheet. */
            ownerNode?: DOM.BackendNodeId;

            /** Denotes whether the stylesheet is disabled. */
            disabled: boolean;

            /** Whether the sourceURL field value comes from the sourceURL comment. */
            hasSourceURL?: boolean;

            /** Whether this stylesheet is created for STYLE tag by parser. This flag is not set for
document.written STYLE tags. */
            isInline: boolean;

            /** Line offset of the stylesheet within the resource (zero based). */
            startLine: number;

            /** Column offset of the stylesheet within the resource (zero based). */
            startColumn: number;

            /** Size of the content (in characters). */
            length: number;

        }

        /** CSS rule representation. */
        export interface CSSRule {
            /** The css style sheet identifier (absent for user agent stylesheet and user-specified
stylesheet rules) this rule came from. */
            styleSheetId?: StyleSheetId;

            /** Rule selector data. */
            selectorList: SelectorList;

            /** Parent stylesheet's origin. */
            origin: StyleSheetOrigin;

            /** Associated style declaration. */
            style: CSSStyle;

            /** Media list array (for rules involving media queries). The array enumerates media queries
starting with the innermost one, going outwards. */
            media?: CSSMedia[];

        }

        /** CSS coverage information. */
        export interface RuleUsage {
            /** The css style sheet identifier (absent for user agent stylesheet and user-specified
stylesheet rules) this rule came from. */
            styleSheetId: StyleSheetId;

            /** Offset of the start of the rule (including selector) from the beginning of the stylesheet. */
            startOffset: number;

            /** Offset of the end of the rule body from the beginning of the stylesheet. */
            endOffset: number;

            /** Indicates whether the rule was actually used by some element in the page. */
            used: boolean;

        }

        /** Text range within a resource. All numbers are zero-based. */
        export interface SourceRange {
            /** Start line of range. */
            startLine: integer;

            /** Start column of range (inclusive). */
            startColumn: integer;

            /** End line of range */
            endLine: integer;

            /** End column of range (exclusive). */
            endColumn: integer;

        }

        export interface ShorthandEntry {
            /** Shorthand name. */
            name: string;

            /** Shorthand value. */
            value: string;

            /** Whether the property has "!important" annotation (implies `false` if absent). */
            important?: boolean;

        }

        export interface CSSComputedStyleProperty {
            /** Computed style property name. */
            name: string;

            /** Computed style property value. */
            value: string;

        }

        /** CSS style representation. */
        export interface CSSStyle {
            /** The css style sheet identifier (absent for user agent stylesheet and user-specified
stylesheet rules) this rule came from. */
            styleSheetId?: StyleSheetId;

            /** CSS properties in the style. */
            cssProperties: CSSProperty[];

            /** Computed values for all shorthands found in the style. */
            shorthandEntries: ShorthandEntry[];

            /** Style declaration text (if available). */
            cssText?: string;

            /** Style declaration range in the enclosing stylesheet (if available). */
            range?: SourceRange;

        }

        /** CSS property declaration data. */
        export interface CSSProperty {
            /** The property name. */
            name: string;

            /** The property value. */
            value: string;

            /** Whether the property has "!important" annotation (implies `false` if absent). */
            important?: boolean;

            /** Whether the property is implicit (implies `false` if absent). */
            implicit?: boolean;

            /** The full property text as specified in the style. */
            text?: string;

            /** Whether the property is understood by the browser (implies `true` if absent). */
            parsedOk?: boolean;

            /** Whether the property is disabled by the user (present for source-based properties only). */
            disabled?: boolean;

            /** The entire property range in the enclosing style declaration (if available). */
            range?: SourceRange;

        }

        /** CSS media rule descriptor. */
        export interface CSSMedia {
            /** Media query text. */
            text: string;

            /** Source of the media query: "mediaRule" if specified by a @media rule, "importRule" if
specified by an @import rule, "linkedSheet" if specified by a "media" attribute in a linked
stylesheet's LINK tag, "inlineSheet" if specified by a "media" attribute in an inline
stylesheet's STYLE tag. */
            source: ('mediaRule' | 'importRule' | 'linkedSheet' | 'inlineSheet');

            /** URL of the document containing the media query description. */
            sourceURL?: string;

            /** The associated rule (@media or @import) header range in the enclosing stylesheet (if
available). */
            range?: SourceRange;

            /** Identifier of the stylesheet containing this object (if exists). */
            styleSheetId?: StyleSheetId;

            /** Array of media queries. */
            mediaList?: MediaQuery[];

        }

        /** Media query descriptor. */
        export interface MediaQuery {
            /** Array of media query expressions. */
            expressions: MediaQueryExpression[];

            /** Whether the media query condition is satisfied. */
            active: boolean;

        }

        /** Media query expression descriptor. */
        export interface MediaQueryExpression {
            /** Media query expression value. */
            value: number;

            /** Media query expression units. */
            unit: string;

            /** Media query expression feature. */
            feature: string;

            /** The associated range of the value text in the enclosing stylesheet (if available). */
            valueRange?: SourceRange;

            /** Computed length of media query expression (if applicable). */
            computedLength?: number;

        }

        /** Information about amount of glyphs that were rendered with given font. */
        export interface PlatformFontUsage {
            /** Font's family name reported by platform. */
            familyName: string;

            /** Indicates if the font was downloaded or resolved locally. */
            isCustomFont: boolean;

            /** Amount of glyphs that were rendered with this font. */
            glyphCount: number;

        }

        /** CSS keyframes rule representation. */
        export interface CSSKeyframesRule {
            /** Animation name. */
            animationName: Value;

            /** List of keyframes. */
            keyframes: CSSKeyframeRule[];

        }

        /** CSS keyframe rule representation. */
        export interface CSSKeyframeRule {
            /** The css style sheet identifier (absent for user agent stylesheet and user-specified
stylesheet rules) this rule came from. */
            styleSheetId?: StyleSheetId;

            /** Parent stylesheet's origin. */
            origin: StyleSheetOrigin;

            /** Associated key text. */
            keyText: Value;

            /** Associated style declaration. */
            style: CSSStyle;

        }

        /** A descriptor of operation to mutate style declaration text. */
        export interface StyleDeclarationEdit {
            /** The css style sheet identifier. */
            styleSheetId: StyleSheetId;

            /** The range of the style text in the enclosing stylesheet. */
            range: SourceRange;

            /** New style text. */
            text: string;

        }

        export interface AddRuleRequest {
            /** The css style sheet identifier where a new rule should be inserted. */
            styleSheetId: StyleSheetId;

            /** The text of a new rule. */
            ruleText: string;

            /** Text position of a new rule in the target style sheet. */
            location: SourceRange;

        }

        export interface AddRuleResponse {
            /** The newly created rule. */
            rule: CSSRule;

        }

        export interface CollectClassNamesRequest {
            styleSheetId: StyleSheetId;

        }

        export interface CollectClassNamesResponse {
            /** Class name list. */
            classNames: string[];

        }

        export interface CreateStyleSheetRequest {
            /** Identifier of the frame where "via-inspector" stylesheet should be created. */
            frameId: Page.FrameId;

        }

        export interface CreateStyleSheetResponse {
            /** Identifier of the created "via-inspector" stylesheet. */
            styleSheetId: StyleSheetId;

        }

        export interface ForcePseudoStateRequest {
            /** The element id for which to force the pseudo state. */
            nodeId: DOM.NodeId;

            /** Element pseudo classes to force when computing the element's style. */
            forcedPseudoClasses: string[];

        }

        export interface GetBackgroundColorsRequest {
            /** Id of the node to get background colors for. */
            nodeId: DOM.NodeId;

        }

        export interface GetBackgroundColorsResponse {
            /** The range of background colors behind this element, if it contains any visible text. If no
visible text is present, this will be undefined. In the case of a flat background color,
this will consist of simply that color. In the case of a gradient, this will consist of each
of the color stops. For anything more complicated, this will be an empty array. Images will
be ignored (as if the image had failed to load). */
            backgroundColors?: string[];

            /** The computed font size for this node, as a CSS computed value string (e.g. '12px'). */
            computedFontSize?: string;

            /** The computed font weight for this node, as a CSS computed value string (e.g. 'normal' or
'100'). */
            computedFontWeight?: string;

            /** The computed font size for the document body, as a computed CSS value string (e.g. '16px'). */
            computedBodyFontSize?: string;

        }

        export interface GetComputedStyleForNodeRequest {
            nodeId: DOM.NodeId;

        }

        export interface GetComputedStyleForNodeResponse {
            /** Computed style for the specified DOM node. */
            computedStyle: CSSComputedStyleProperty[];

        }

        export interface GetInlineStylesForNodeRequest {
            nodeId: DOM.NodeId;

        }

        export interface GetInlineStylesForNodeResponse {
            /** Inline style for the specified DOM node. */
            inlineStyle?: CSSStyle;

            /** Attribute-defined element style (e.g. resulting from "width=20 height=100%"). */
            attributesStyle?: CSSStyle;

        }

        export interface GetMatchedStylesForNodeRequest {
            nodeId: DOM.NodeId;

        }

        export interface GetMatchedStylesForNodeResponse {
            /** Inline style for the specified DOM node. */
            inlineStyle?: CSSStyle;

            /** Attribute-defined element style (e.g. resulting from "width=20 height=100%"). */
            attributesStyle?: CSSStyle;

            /** CSS rules matching this node, from all applicable stylesheets. */
            matchedCSSRules?: RuleMatch[];

            /** Pseudo style matches for this node. */
            pseudoElements?: PseudoElementMatches[];

            /** A chain of inherited styles (from the immediate node parent up to the DOM tree root). */
            inherited?: InheritedStyleEntry[];

            /** A list of CSS keyframed animations matching this node. */
            cssKeyframesRules?: CSSKeyframesRule[];

        }

        export interface GetMediaQueriesResponse {
            medias: CSSMedia[];

        }

        export interface GetPlatformFontsForNodeRequest {
            nodeId: DOM.NodeId;

        }

        export interface GetPlatformFontsForNodeResponse {
            /** Usage statistics for every employed platform font. */
            fonts: PlatformFontUsage[];

        }

        export interface GetStyleSheetTextRequest {
            styleSheetId: StyleSheetId;

        }

        export interface GetStyleSheetTextResponse {
            /** The stylesheet text. */
            text: string;

        }

        export interface SetEffectivePropertyValueForNodeRequest {
            /** The element id for which to set property. */
            nodeId: DOM.NodeId;

            propertyName: string;

            value: string;

        }

        export interface SetKeyframeKeyRequest {
            styleSheetId: StyleSheetId;

            range: SourceRange;

            keyText: string;

        }

        export interface SetKeyframeKeyResponse {
            /** The resulting key text after modification. */
            keyText: Value;

        }

        export interface SetMediaTextRequest {
            styleSheetId: StyleSheetId;

            range: SourceRange;

            text: string;

        }

        export interface SetMediaTextResponse {
            /** The resulting CSS media rule after modification. */
            media: CSSMedia;

        }

        export interface SetRuleSelectorRequest {
            styleSheetId: StyleSheetId;

            range: SourceRange;

            selector: string;

        }

        export interface SetRuleSelectorResponse {
            /** The resulting selector list after modification. */
            selectorList: SelectorList;

        }

        export interface SetStyleSheetTextRequest {
            styleSheetId: StyleSheetId;

            text: string;

        }

        export interface SetStyleSheetTextResponse {
            /** URL of source map associated with script (if any). */
            sourceMapURL?: string;

        }

        export interface SetStyleTextsRequest {
            edits: StyleDeclarationEdit[];

        }

        export interface SetStyleTextsResponse {
            /** The resulting styles after modification. */
            styles: CSSStyle[];

        }

        export interface StopRuleUsageTrackingResponse {
            ruleUsage: RuleUsage[];

        }

        export interface TakeCoverageDeltaResponse {
            coverage: RuleUsage[];

        }

        export interface StyleSheetAddedEvent {
            /** Added stylesheet metainfo. */
            header: CSSStyleSheetHeader;

        }

        export interface StyleSheetChangedEvent {
            styleSheetId: StyleSheetId;

        }

        export interface StyleSheetRemovedEvent {
            /** Identifier of the removed stylesheet. */
            styleSheetId: StyleSheetId;

        }
    }

    export interface CSSCommands {
        /** Inserts a new rule with the given `ruleText` in a stylesheet with given `styleSheetId`, at the
position specified by `location`. */
        addRule?: (params: CSS.AddRuleRequest) => Promise<CSS.AddRuleResponse>;

        /** Returns all class names from specified stylesheet. */
        collectClassNames?: (params: CSS.CollectClassNamesRequest) => Promise<CSS.CollectClassNamesResponse>;

        /** Creates a new special "via-inspector" stylesheet in the frame with given `frameId`. */
        createStyleSheet?: (params: CSS.CreateStyleSheetRequest) => Promise<CSS.CreateStyleSheetResponse>;

        /** Disables the CSS agent for the given page. */
        disable?: () => Promise<void>;

        /** Enables the CSS agent for the given page. Clients should not assume that the CSS agent has been
enabled until the result of this command is received. */
        enable?: () => Promise<void>;

        /** Ensures that the given node will have specified pseudo-classes whenever its style is computed by
the browser. */
        forcePseudoState?: (params: CSS.ForcePseudoStateRequest) => Promise<void>;

        getBackgroundColors?: (params: CSS.GetBackgroundColorsRequest) => Promise<CSS.GetBackgroundColorsResponse>;

        /** Returns the computed style for a DOM node identified by `nodeId`. */
        getComputedStyleForNode?: (params: CSS.GetComputedStyleForNodeRequest) => Promise<CSS.GetComputedStyleForNodeResponse>;

        /** Returns the styles defined inline (explicitly in the "style" attribute and implicitly, using DOM
attributes) for a DOM node identified by `nodeId`. */
        getInlineStylesForNode?: (params: CSS.GetInlineStylesForNodeRequest) => Promise<CSS.GetInlineStylesForNodeResponse>;

        /** Returns requested styles for a DOM node identified by `nodeId`. */
        getMatchedStylesForNode?: (params: CSS.GetMatchedStylesForNodeRequest) => Promise<CSS.GetMatchedStylesForNodeResponse>;

        /** Returns all media queries parsed by the rendering engine. */
        getMediaQueries?: () => Promise<CSS.GetMediaQueriesResponse>;

        /** Requests information about platform fonts which we used to render child TextNodes in the given
node. */
        getPlatformFontsForNode?: (params: CSS.GetPlatformFontsForNodeRequest) => Promise<CSS.GetPlatformFontsForNodeResponse>;

        /** Returns the current textual content and the URL for a stylesheet. */
        getStyleSheetText?: (params: CSS.GetStyleSheetTextRequest) => Promise<CSS.GetStyleSheetTextResponse>;

        /** Find a rule with the given active property for the given node and set the new value for this
property */
        setEffectivePropertyValueForNode?: (params: CSS.SetEffectivePropertyValueForNodeRequest) => Promise<void>;

        /** Modifies the keyframe rule key text. */
        setKeyframeKey?: (params: CSS.SetKeyframeKeyRequest) => Promise<CSS.SetKeyframeKeyResponse>;

        /** Modifies the rule selector. */
        setMediaText?: (params: CSS.SetMediaTextRequest) => Promise<CSS.SetMediaTextResponse>;

        /** Modifies the rule selector. */
        setRuleSelector?: (params: CSS.SetRuleSelectorRequest) => Promise<CSS.SetRuleSelectorResponse>;

        /** Sets the new stylesheet text. */
        setStyleSheetText?: (params: CSS.SetStyleSheetTextRequest) => Promise<CSS.SetStyleSheetTextResponse>;

        /** Applies specified style edits one after another in the given order. */
        setStyleTexts?: (params: CSS.SetStyleTextsRequest) => Promise<CSS.SetStyleTextsResponse>;

        /** Enables the selector recording. */
        startRuleUsageTracking?: () => Promise<void>;

        /** The list of rules with an indication of whether these were used */
        stopRuleUsageTracking?: () => Promise<CSS.StopRuleUsageTrackingResponse>;

        /** Obtain list of rules that became used since last call to this method (or since start of coverage
instrumentation) */
        takeCoverageDelta?: () => Promise<CSS.TakeCoverageDeltaResponse>;

    }

    export interface CSSClient extends CSSCommands {
        /** Fires whenever a web font gets loaded. */
        onFontsUpdated(handler: () => void): void;

        /** Fires whenever a MediaQuery result changes (for example, after a browser window has been
resized.) The current implementation considers only viewport-dependent media features. */
        onMediaQueryResultChanged(handler: () => void): void;

        /** Fired whenever an active document stylesheet is added. */
        onStyleSheetAdded(handler: (params: CSS.StyleSheetAddedEvent) => void): void;

        /** Fired whenever a stylesheet is changed as a result of the client operation. */
        onStyleSheetChanged(handler: (params: CSS.StyleSheetChangedEvent) => void): void;

        /** Fired whenever an active document stylesheet is removed. */
        onStyleSheetRemoved(handler: (params: CSS.StyleSheetRemovedEvent) => void): void;

    }

    export interface CSSServer {
        /** Fires whenever a web font gets loaded. */
        emitFontsUpdated(): void;

        /** Fires whenever a MediaQuery result changes (for example, after a browser window has been
resized.) The current implementation considers only viewport-dependent media features. */
        emitMediaQueryResultChanged(): void;

        /** Fired whenever an active document stylesheet is added. */
        emitStyleSheetAdded(params: CSS.StyleSheetAddedEvent): void;

        /** Fired whenever a stylesheet is changed as a result of the client operation. */
        emitStyleSheetChanged(params: CSS.StyleSheetChangedEvent): void;

        /** Fired whenever an active document stylesheet is removed. */
        emitStyleSheetRemoved(params: CSS.StyleSheetRemovedEvent): void;

        expose(domain: CSSCommands): void;

    }

    export module CacheStorage {

        /** Unique identifier of the Cache object. */
        export type CacheId = string;

        /** Data entry. */
        export interface DataEntry {
            /** Request URL. */
            requestURL: string;

            /** Request method. */
            requestMethod: string;

            /** Request headers */
            requestHeaders: Header[];

            /** Number of seconds since epoch. */
            responseTime: number;

            /** HTTP response status code. */
            responseStatus: integer;

            /** HTTP response status text. */
            responseStatusText: string;

            /** Response headers */
            responseHeaders: Header[];

        }

        /** Cache identifier. */
        export interface Cache {
            /** An opaque unique id of the cache. */
            cacheId: CacheId;

            /** Security origin of the cache. */
            securityOrigin: string;

            /** The name of the cache. */
            cacheName: string;

        }

        export interface Header {
            name: string;

            value: string;

        }

        /** Cached response */
        export interface CachedResponse {
            /** Entry content, base64-encoded. */
            body: string;

        }

        export interface DeleteCacheRequest {
            /** Id of cache for deletion. */
            cacheId: CacheId;

        }

        export interface DeleteEntryRequest {
            /** Id of cache where the entry will be deleted. */
            cacheId: CacheId;

            /** URL spec of the request. */
            request: string;

        }

        export interface RequestCacheNamesRequest {
            /** Security origin. */
            securityOrigin: string;

        }

        export interface RequestCacheNamesResponse {
            /** Caches for the security origin. */
            caches: Cache[];

        }

        export interface RequestCachedResponseRequest {
            /** Id of cache that contains the enty. */
            cacheId: CacheId;

            /** URL spec of the request. */
            requestURL: string;

        }

        export interface RequestCachedResponseResponse {
            /** Response read from the cache. */
            response: CachedResponse;

        }

        export interface RequestEntriesRequest {
            /** ID of cache to get entries from. */
            cacheId: CacheId;

            /** Number of records to skip. */
            skipCount: integer;

            /** Number of records to fetch. */
            pageSize: integer;

        }

        export interface RequestEntriesResponse {
            /** Array of object store data entries. */
            cacheDataEntries: DataEntry[];

            /** If true, there are more entries to fetch in the given range. */
            hasMore: boolean;

        }
    }

    export interface CacheStorageCommands {
        /** Deletes a cache. */
        deleteCache?: (params: CacheStorage.DeleteCacheRequest) => Promise<void>;

        /** Deletes a cache entry. */
        deleteEntry?: (params: CacheStorage.DeleteEntryRequest) => Promise<void>;

        /** Requests cache names. */
        requestCacheNames?: (params: CacheStorage.RequestCacheNamesRequest) => Promise<CacheStorage.RequestCacheNamesResponse>;

        /** Fetches cache entry. */
        requestCachedResponse?: (params: CacheStorage.RequestCachedResponseRequest) => Promise<CacheStorage.RequestCachedResponseResponse>;

        /** Requests data from cache. */
        requestEntries?: (params: CacheStorage.RequestEntriesRequest) => Promise<CacheStorage.RequestEntriesResponse>;

    }

    export interface CacheStorageClient extends CacheStorageCommands {
    }

    export interface CacheStorageServer {
        expose(domain: CacheStorageCommands): void;

    }

    /** This domain exposes DOM read/write operations. Each DOM Node is represented with its mirror object
that has an `id`. This `id` can be used to get additional information on the Node, resolve it into
the JavaScript object wrapper, etc. It is important that client receives DOM events only for the
nodes that are known to the client. Backend keeps track of the nodes that were sent to the client
and never sends the same node twice. It is client's responsibility to collect information about
the nodes that were sent to the client.<p>Note that `iframe` owner elements will return
corresponding document elements as their child nodes.</p> */
    export module DOM {

        /** Unique DOM node identifier. */
        export type NodeId = integer;

        /** Unique DOM node identifier used to reference a node that may not have been pushed to the
front-end. */
        export type BackendNodeId = integer;

        /** Backend node with a friendly name. */
        export interface BackendNode {
            /** `Node`'s nodeType. */
            nodeType: integer;

            /** `Node`'s nodeName. */
            nodeName: string;

            backendNodeId: BackendNodeId;

        }

        /** Pseudo element type. */
        export type PseudoType = ('first-line' | 'first-letter' | 'before' | 'after' | 'backdrop' | 'selection' | 'first-line-inherited' | 'scrollbar' | 'scrollbar-thumb' | 'scrollbar-button' | 'scrollbar-track' | 'scrollbar-track-piece' | 'scrollbar-corner' | 'resizer' | 'input-list-button');

        /** Shadow root type. */
        export type ShadowRootType = ('user-agent' | 'open' | 'closed');

        /** DOM interaction is implemented in terms of mirror objects that represent the actual DOM nodes.
DOMNode is a base node mirror type. */
        export interface Node {
            /** Node identifier that is passed into the rest of the DOM messages as the `nodeId`. Backend
will only push node with given `id` once. It is aware of all requested nodes and will only
fire DOM events for nodes known to the client. */
            nodeId: NodeId;

            /** The id of the parent node if any. */
            parentId?: NodeId;

            /** The BackendNodeId for this node. */
            backendNodeId: BackendNodeId;

            /** `Node`'s nodeType. */
            nodeType: integer;

            /** `Node`'s nodeName. */
            nodeName: string;

            /** `Node`'s localName. */
            localName: string;

            /** `Node`'s nodeValue. */
            nodeValue: string;

            /** Child count for `Container` nodes. */
            childNodeCount?: integer;

            /** Child nodes of this node when requested with children. */
            children?: Node[];

            /** Attributes of the `Element` node in the form of flat array `[name1, value1, name2, value2]`. */
            attributes?: string[];

            /** Document URL that `Document` or `FrameOwner` node points to. */
            documentURL?: string;

            /** Base URL that `Document` or `FrameOwner` node uses for URL completion. */
            baseURL?: string;

            /** `DocumentType`'s publicId. */
            publicId?: string;

            /** `DocumentType`'s systemId. */
            systemId?: string;

            /** `DocumentType`'s internalSubset. */
            internalSubset?: string;

            /** `Document`'s XML version in case of XML documents. */
            xmlVersion?: string;

            /** `Attr`'s name. */
            name?: string;

            /** `Attr`'s value. */
            value?: string;

            /** Pseudo element type for this node. */
            pseudoType?: PseudoType;

            /** Shadow root type. */
            shadowRootType?: ShadowRootType;

            /** Frame ID for frame owner elements. */
            frameId?: Page.FrameId;

            /** Content document for frame owner elements. */
            contentDocument?: Node;

            /** Shadow root list for given element host. */
            shadowRoots?: Node[];

            /** Content document fragment for template elements. */
            templateContent?: Node;

            /** Pseudo elements associated with this node. */
            pseudoElements?: Node[];

            /** Import document for the HTMLImport links. */
            importedDocument?: Node;

            /** Distributed nodes for given insertion point. */
            distributedNodes?: BackendNode[];

            /** Whether the node is SVG. */
            isSVG?: boolean;

        }

        /** A structure holding an RGBA color. */
        export interface RGBA {
            /** The red component, in the [0-255] range. */
            r: integer;

            /** The green component, in the [0-255] range. */
            g: integer;

            /** The blue component, in the [0-255] range. */
            b: integer;

            /** The alpha component, in the [0-1] range (default: 1). */
            a?: number;

        }

        /** An array of quad vertices, x immediately followed by y for each point, points clock-wise. */
        export type Quad = number[];

        /** Box model. */
        export interface BoxModel {
            /** Content box */
            content: Quad;

            /** Padding box */
            padding: Quad;

            /** Border box */
            border: Quad;

            /** Margin box */
            margin: Quad;

            /** Node width */
            width: integer;

            /** Node height */
            height: integer;

            /** Shape outside coordinates */
            shapeOutside?: ShapeOutsideInfo;

        }

        /** CSS Shape Outside details. */
        export interface ShapeOutsideInfo {
            /** Shape bounds */
            bounds: Quad;

            /** Shape coordinate details */
            shape: any[];

            /** Margin shape bounds */
            marginShape: any[];

        }

        /** Rectangle. */
        export interface Rect {
            /** X coordinate */
            x: number;

            /** Y coordinate */
            y: number;

            /** Rectangle width */
            width: number;

            /** Rectangle height */
            height: number;

        }

        export interface CollectClassNamesFromSubtreeRequest {
            /** Id of the node to collect class names. */
            nodeId: NodeId;

        }

        export interface CollectClassNamesFromSubtreeResponse {
            /** Class name list. */
            classNames: string[];

        }

        export interface CopyToRequest {
            /** Id of the node to copy. */
            nodeId: NodeId;

            /** Id of the element to drop the copy into. */
            targetNodeId: NodeId;

            /** Drop the copy before this node (if absent, the copy becomes the last child of
`targetNodeId`). */
            insertBeforeNodeId?: NodeId;

        }

        export interface CopyToResponse {
            /** Id of the node clone. */
            nodeId: NodeId;

        }

        export interface DescribeNodeRequest {
            /** Identifier of the node. */
            nodeId?: NodeId;

            /** Identifier of the backend node. */
            backendNodeId?: BackendNodeId;

            /** JavaScript object id of the node wrapper. */
            objectId?: Runtime.RemoteObjectId;

            /** The maximum depth at which children should be retrieved, defaults to 1. Use -1 for the
entire subtree or provide an integer larger than 0. */
            depth?: integer;

            /** Whether or not iframes and shadow roots should be traversed when returning the subtree
(default is false). */
            pierce?: boolean;

        }

        export interface DescribeNodeResponse {
            /** Node description. */
            node: Node;

        }

        export interface DiscardSearchResultsRequest {
            /** Unique search session identifier. */
            searchId: string;

        }

        export interface FocusRequest {
            /** Identifier of the node. */
            nodeId?: NodeId;

            /** Identifier of the backend node. */
            backendNodeId?: BackendNodeId;

            /** JavaScript object id of the node wrapper. */
            objectId?: Runtime.RemoteObjectId;

        }

        export interface GetAttributesRequest {
            /** Id of the node to retrieve attibutes for. */
            nodeId: NodeId;

        }

        export interface GetAttributesResponse {
            /** An interleaved array of node attribute names and values. */
            attributes: string[];

        }

        export interface GetBoxModelRequest {
            /** Identifier of the node. */
            nodeId?: NodeId;

            /** Identifier of the backend node. */
            backendNodeId?: BackendNodeId;

            /** JavaScript object id of the node wrapper. */
            objectId?: Runtime.RemoteObjectId;

        }

        export interface GetBoxModelResponse {
            /** Box model for the node. */
            model: BoxModel;

        }

        export interface GetDocumentRequest {
            /** The maximum depth at which children should be retrieved, defaults to 1. Use -1 for the
entire subtree or provide an integer larger than 0. */
            depth?: integer;

            /** Whether or not iframes and shadow roots should be traversed when returning the subtree
(default is false). */
            pierce?: boolean;

        }

        export interface GetDocumentResponse {
            /** Resulting node. */
            root: Node;

        }

        export interface GetFlattenedDocumentRequest {
            /** The maximum depth at which children should be retrieved, defaults to 1. Use -1 for the
entire subtree or provide an integer larger than 0. */
            depth?: integer;

            /** Whether or not iframes and shadow roots should be traversed when returning the subtree
(default is false). */
            pierce?: boolean;

        }

        export interface GetFlattenedDocumentResponse {
            /** Resulting node. */
            nodes: Node[];

        }

        export interface GetNodeForLocationRequest {
            /** X coordinate. */
            x: integer;

            /** Y coordinate. */
            y: integer;

            /** False to skip to the nearest non-UA shadow root ancestor (default: false). */
            includeUserAgentShadowDOM?: boolean;

        }

        export interface GetNodeForLocationResponse {
            /** Id of the node at given coordinates. */
            nodeId: NodeId;

        }

        export interface GetOuterHTMLRequest {
            /** Identifier of the node. */
            nodeId?: NodeId;

            /** Identifier of the backend node. */
            backendNodeId?: BackendNodeId;

            /** JavaScript object id of the node wrapper. */
            objectId?: Runtime.RemoteObjectId;

        }

        export interface GetOuterHTMLResponse {
            /** Outer HTML markup. */
            outerHTML: string;

        }

        export interface GetRelayoutBoundaryRequest {
            /** Id of the node. */
            nodeId: NodeId;

        }

        export interface GetRelayoutBoundaryResponse {
            /** Relayout boundary node id for the given node. */
            nodeId: NodeId;

        }

        export interface GetSearchResultsRequest {
            /** Unique search session identifier. */
            searchId: string;

            /** Start index of the search result to be returned. */
            fromIndex: integer;

            /** End index of the search result to be returned. */
            toIndex: integer;

        }

        export interface GetSearchResultsResponse {
            /** Ids of the search result nodes. */
            nodeIds: NodeId[];

        }

        export interface MoveToRequest {
            /** Id of the node to move. */
            nodeId: NodeId;

            /** Id of the element to drop the moved node into. */
            targetNodeId: NodeId;

            /** Drop node before this one (if absent, the moved node becomes the last child of
`targetNodeId`). */
            insertBeforeNodeId?: NodeId;

        }

        export interface MoveToResponse {
            /** New id of the moved node. */
            nodeId: NodeId;

        }

        export interface PerformSearchRequest {
            /** Plain text or query selector or XPath search query. */
            query: string;

            /** True to search in user agent shadow DOM. */
            includeUserAgentShadowDOM?: boolean;

        }

        export interface PerformSearchResponse {
            /** Unique search session identifier. */
            searchId: string;

            /** Number of search results. */
            resultCount: integer;

        }

        export interface PushNodeByPathToFrontendRequest {
            /** Path to node in the proprietary format. */
            path: string;

        }

        export interface PushNodeByPathToFrontendResponse {
            /** Id of the node for given path. */
            nodeId: NodeId;

        }

        export interface PushNodesByBackendIdsToFrontendRequest {
            /** The array of backend node ids. */
            backendNodeIds: BackendNodeId[];

        }

        export interface PushNodesByBackendIdsToFrontendResponse {
            /** The array of ids of pushed nodes that correspond to the backend ids specified in
backendNodeIds. */
            nodeIds: NodeId[];

        }

        export interface QuerySelectorRequest {
            /** Id of the node to query upon. */
            nodeId: NodeId;

            /** Selector string. */
            selector: string;

        }

        export interface QuerySelectorResponse {
            /** Query selector result. */
            nodeId: NodeId;

        }

        export interface QuerySelectorAllRequest {
            /** Id of the node to query upon. */
            nodeId: NodeId;

            /** Selector string. */
            selector: string;

        }

        export interface QuerySelectorAllResponse {
            /** Query selector result. */
            nodeIds: NodeId[];

        }

        export interface RemoveAttributeRequest {
            /** Id of the element to remove attribute from. */
            nodeId: NodeId;

            /** Name of the attribute to remove. */
            name: string;

        }

        export interface RemoveNodeRequest {
            /** Id of the node to remove. */
            nodeId: NodeId;

        }

        export interface RequestChildNodesRequest {
            /** Id of the node to get children for. */
            nodeId: NodeId;

            /** The maximum depth at which children should be retrieved, defaults to 1. Use -1 for the
entire subtree or provide an integer larger than 0. */
            depth?: integer;

            /** Whether or not iframes and shadow roots should be traversed when returning the sub-tree
(default is false). */
            pierce?: boolean;

        }

        export interface RequestNodeRequest {
            /** JavaScript object id to convert into node. */
            objectId: Runtime.RemoteObjectId;

        }

        export interface RequestNodeResponse {
            /** Node id for given object. */
            nodeId: NodeId;

        }

        export interface ResolveNodeRequest {
            /** Id of the node to resolve. */
            nodeId?: NodeId;

            /** Backend identifier of the node to resolve. */
            backendNodeId?: DOM.BackendNodeId;

            /** Symbolic group name that can be used to release multiple objects. */
            objectGroup?: string;

        }

        export interface ResolveNodeResponse {
            /** JavaScript object wrapper for given node. */
            object: Runtime.RemoteObject;

        }

        export interface SetAttributeValueRequest {
            /** Id of the element to set attribute for. */
            nodeId: NodeId;

            /** Attribute name. */
            name: string;

            /** Attribute value. */
            value: string;

        }

        export interface SetAttributesAsTextRequest {
            /** Id of the element to set attributes for. */
            nodeId: NodeId;

            /** Text with a number of attributes. Will parse this text using HTML parser. */
            text: string;

            /** Attribute name to replace with new attributes derived from text in case text parsed
successfully. */
            name?: string;

        }

        export interface SetFileInputFilesRequest {
            /** Array of file paths to set. */
            files: string[];

            /** Identifier of the node. */
            nodeId?: NodeId;

            /** Identifier of the backend node. */
            backendNodeId?: BackendNodeId;

            /** JavaScript object id of the node wrapper. */
            objectId?: Runtime.RemoteObjectId;

        }

        export interface SetInspectedNodeRequest {
            /** DOM node id to be accessible by means of $x command line API. */
            nodeId: NodeId;

        }

        export interface SetNodeNameRequest {
            /** Id of the node to set name for. */
            nodeId: NodeId;

            /** New node's name. */
            name: string;

        }

        export interface SetNodeNameResponse {
            /** New node's id. */
            nodeId: NodeId;

        }

        export interface SetNodeValueRequest {
            /** Id of the node to set value for. */
            nodeId: NodeId;

            /** New node's value. */
            value: string;

        }

        export interface SetOuterHTMLRequest {
            /** Id of the node to set markup for. */
            nodeId: NodeId;

            /** Outer HTML markup to set. */
            outerHTML: string;

        }

        export interface AttributeModifiedEvent {
            /** Id of the node that has changed. */
            nodeId: NodeId;

            /** Attribute name. */
            name: string;

            /** Attribute value. */
            value: string;

        }

        export interface AttributeRemovedEvent {
            /** Id of the node that has changed. */
            nodeId: NodeId;

            /** A ttribute name. */
            name: string;

        }

        export interface CharacterDataModifiedEvent {
            /** Id of the node that has changed. */
            nodeId: NodeId;

            /** New text value. */
            characterData: string;

        }

        export interface ChildNodeCountUpdatedEvent {
            /** Id of the node that has changed. */
            nodeId: NodeId;

            /** New node count. */
            childNodeCount: integer;

        }

        export interface ChildNodeInsertedEvent {
            /** Id of the node that has changed. */
            parentNodeId: NodeId;

            /** If of the previous siblint. */
            previousNodeId: NodeId;

            /** Inserted node data. */
            node: Node;

        }

        export interface ChildNodeRemovedEvent {
            /** Parent id. */
            parentNodeId: NodeId;

            /** Id of the node that has been removed. */
            nodeId: NodeId;

        }

        export interface DistributedNodesUpdatedEvent {
            /** Insertion point where distrubuted nodes were updated. */
            insertionPointId: NodeId;

            /** Distributed nodes for given insertion point. */
            distributedNodes: BackendNode[];

        }

        export interface InlineStyleInvalidatedEvent {
            /** Ids of the nodes for which the inline styles have been invalidated. */
            nodeIds: NodeId[];

        }

        export interface PseudoElementAddedEvent {
            /** Pseudo element's parent element id. */
            parentId: NodeId;

            /** The added pseudo element. */
            pseudoElement: Node;

        }

        export interface PseudoElementRemovedEvent {
            /** Pseudo element's parent element id. */
            parentId: NodeId;

            /** The removed pseudo element id. */
            pseudoElementId: NodeId;

        }

        export interface SetChildNodesEvent {
            /** Parent node id to populate with children. */
            parentId: NodeId;

            /** Child nodes array. */
            nodes: Node[];

        }

        export interface ShadowRootPoppedEvent {
            /** Host element id. */
            hostId: NodeId;

            /** Shadow root id. */
            rootId: NodeId;

        }

        export interface ShadowRootPushedEvent {
            /** Host element id. */
            hostId: NodeId;

            /** Shadow root. */
            root: Node;

        }
    }

    export interface DOMCommands {
        /** Collects class names for the node with given id and all of it's child nodes. */
        collectClassNamesFromSubtree?: (params: DOM.CollectClassNamesFromSubtreeRequest) => Promise<DOM.CollectClassNamesFromSubtreeResponse>;

        /** Creates a deep copy of the specified node and places it into the target container before the
given anchor. */
        copyTo?: (params: DOM.CopyToRequest) => Promise<DOM.CopyToResponse>;

        /** Describes node given its id, does not require domain to be enabled. Does not start tracking any
objects, can be used for automation. */
        describeNode?: (params: DOM.DescribeNodeRequest) => Promise<DOM.DescribeNodeResponse>;

        /** Disables DOM agent for the given page. */
        disable?: () => Promise<void>;

        /** Discards search results from the session with the given id. `getSearchResults` should no longer
be called for that search. */
        discardSearchResults?: (params: DOM.DiscardSearchResultsRequest) => Promise<void>;

        /** Enables DOM agent for the given page. */
        enable?: () => Promise<void>;

        /** Focuses the given element. */
        focus?: (params: DOM.FocusRequest) => Promise<void>;

        /** Returns attributes for the specified node. */
        getAttributes?: (params: DOM.GetAttributesRequest) => Promise<DOM.GetAttributesResponse>;

        /** Returns boxes for the given node. */
        getBoxModel?: (params: DOM.GetBoxModelRequest) => Promise<DOM.GetBoxModelResponse>;

        /** Returns the root DOM node (and optionally the subtree) to the caller. */
        getDocument?: (params: DOM.GetDocumentRequest) => Promise<DOM.GetDocumentResponse>;

        /** Returns the root DOM node (and optionally the subtree) to the caller. */
        getFlattenedDocument?: (params: DOM.GetFlattenedDocumentRequest) => Promise<DOM.GetFlattenedDocumentResponse>;

        /** Returns node id at given location. */
        getNodeForLocation?: (params: DOM.GetNodeForLocationRequest) => Promise<DOM.GetNodeForLocationResponse>;

        /** Returns node's HTML markup. */
        getOuterHTML?: (params: DOM.GetOuterHTMLRequest) => Promise<DOM.GetOuterHTMLResponse>;

        /** Returns the id of the nearest ancestor that is a relayout boundary. */
        getRelayoutBoundary?: (params: DOM.GetRelayoutBoundaryRequest) => Promise<DOM.GetRelayoutBoundaryResponse>;

        /** Returns search results from given `fromIndex` to given `toIndex` from the search with the given
identifier. */
        getSearchResults?: (params: DOM.GetSearchResultsRequest) => Promise<DOM.GetSearchResultsResponse>;

        /** Hides any highlight. */
        hideHighlight?: () => Promise<void>;

        /** Highlights DOM node. */
        highlightNode?: () => Promise<void>;

        /** Highlights given rectangle. */
        highlightRect?: () => Promise<void>;

        /** Marks last undoable state. */
        markUndoableState?: () => Promise<void>;

        /** Moves node into the new container, places it before the given anchor. */
        moveTo?: (params: DOM.MoveToRequest) => Promise<DOM.MoveToResponse>;

        /** Searches for a given string in the DOM tree. Use `getSearchResults` to access search results or
`cancelSearch` to end this search session. */
        performSearch?: (params: DOM.PerformSearchRequest) => Promise<DOM.PerformSearchResponse>;

        /** Requests that the node is sent to the caller given its path. // FIXME, use XPath */
        pushNodeByPathToFrontend?: (params: DOM.PushNodeByPathToFrontendRequest) => Promise<DOM.PushNodeByPathToFrontendResponse>;

        /** Requests that a batch of nodes is sent to the caller given their backend node ids. */
        pushNodesByBackendIdsToFrontend?: (params: DOM.PushNodesByBackendIdsToFrontendRequest) => Promise<DOM.PushNodesByBackendIdsToFrontendResponse>;

        /** Executes `querySelector` on a given node. */
        querySelector?: (params: DOM.QuerySelectorRequest) => Promise<DOM.QuerySelectorResponse>;

        /** Executes `querySelectorAll` on a given node. */
        querySelectorAll?: (params: DOM.QuerySelectorAllRequest) => Promise<DOM.QuerySelectorAllResponse>;

        /** Re-does the last undone action. */
        redo?: () => Promise<void>;

        /** Removes attribute with given name from an element with given id. */
        removeAttribute?: (params: DOM.RemoveAttributeRequest) => Promise<void>;

        /** Removes node with given id. */
        removeNode?: (params: DOM.RemoveNodeRequest) => Promise<void>;

        /** Requests that children of the node with given id are returned to the caller in form of
`setChildNodes` events where not only immediate children are retrieved, but all children down to
the specified depth. */
        requestChildNodes?: (params: DOM.RequestChildNodesRequest) => Promise<void>;

        /** Requests that the node is sent to the caller given the JavaScript node object reference. All
nodes that form the path from the node to the root are also sent to the client as a series of
`setChildNodes` notifications. */
        requestNode?: (params: DOM.RequestNodeRequest) => Promise<DOM.RequestNodeResponse>;

        /** Resolves the JavaScript node object for a given NodeId or BackendNodeId. */
        resolveNode?: (params: DOM.ResolveNodeRequest) => Promise<DOM.ResolveNodeResponse>;

        /** Sets attribute for an element with given id. */
        setAttributeValue?: (params: DOM.SetAttributeValueRequest) => Promise<void>;

        /** Sets attributes on element with given id. This method is useful when user edits some existing
attribute value and types in several attribute name/value pairs. */
        setAttributesAsText?: (params: DOM.SetAttributesAsTextRequest) => Promise<void>;

        /** Sets files for the given file input element. */
        setFileInputFiles?: (params: DOM.SetFileInputFilesRequest) => Promise<void>;

        /** Enables console to refer to the node with given id via $x (see Command Line API for more details
$x functions). */
        setInspectedNode?: (params: DOM.SetInspectedNodeRequest) => Promise<void>;

        /** Sets node name for a node with given id. */
        setNodeName?: (params: DOM.SetNodeNameRequest) => Promise<DOM.SetNodeNameResponse>;

        /** Sets node value for a node with given id. */
        setNodeValue?: (params: DOM.SetNodeValueRequest) => Promise<void>;

        /** Sets node HTML markup, returns new node id. */
        setOuterHTML?: (params: DOM.SetOuterHTMLRequest) => Promise<void>;

        /** Undoes the last performed action. */
        undo?: () => Promise<void>;

    }

    export interface DOMClient extends DOMCommands {
        /** Fired when `Element`'s attribute is modified. */
        onAttributeModified(handler: (params: DOM.AttributeModifiedEvent) => void): void;

        /** Fired when `Element`'s attribute is removed. */
        onAttributeRemoved(handler: (params: DOM.AttributeRemovedEvent) => void): void;

        /** Mirrors `DOMCharacterDataModified` event. */
        onCharacterDataModified(handler: (params: DOM.CharacterDataModifiedEvent) => void): void;

        /** Fired when `Container`'s child node count has changed. */
        onChildNodeCountUpdated(handler: (params: DOM.ChildNodeCountUpdatedEvent) => void): void;

        /** Mirrors `DOMNodeInserted` event. */
        onChildNodeInserted(handler: (params: DOM.ChildNodeInsertedEvent) => void): void;

        /** Mirrors `DOMNodeRemoved` event. */
        onChildNodeRemoved(handler: (params: DOM.ChildNodeRemovedEvent) => void): void;

        /** Called when distrubution is changed. */
        onDistributedNodesUpdated(handler: (params: DOM.DistributedNodesUpdatedEvent) => void): void;

        /** Fired when `Document` has been totally updated. Node ids are no longer valid. */
        onDocumentUpdated(handler: () => void): void;

        /** Fired when `Element`'s inline style is modified via a CSS property modification. */
        onInlineStyleInvalidated(handler: (params: DOM.InlineStyleInvalidatedEvent) => void): void;

        /** Called when a pseudo element is added to an element. */
        onPseudoElementAdded(handler: (params: DOM.PseudoElementAddedEvent) => void): void;

        /** Called when a pseudo element is removed from an element. */
        onPseudoElementRemoved(handler: (params: DOM.PseudoElementRemovedEvent) => void): void;

        /** Fired when backend wants to provide client with the missing DOM structure. This happens upon
most of the calls requesting node ids. */
        onSetChildNodes(handler: (params: DOM.SetChildNodesEvent) => void): void;

        /** Called when shadow root is popped from the element. */
        onShadowRootPopped(handler: (params: DOM.ShadowRootPoppedEvent) => void): void;

        /** Called when shadow root is pushed into the element. */
        onShadowRootPushed(handler: (params: DOM.ShadowRootPushedEvent) => void): void;

    }

    export interface DOMServer {
        /** Fired when `Element`'s attribute is modified. */
        emitAttributeModified(params: DOM.AttributeModifiedEvent): void;

        /** Fired when `Element`'s attribute is removed. */
        emitAttributeRemoved(params: DOM.AttributeRemovedEvent): void;

        /** Mirrors `DOMCharacterDataModified` event. */
        emitCharacterDataModified(params: DOM.CharacterDataModifiedEvent): void;

        /** Fired when `Container`'s child node count has changed. */
        emitChildNodeCountUpdated(params: DOM.ChildNodeCountUpdatedEvent): void;

        /** Mirrors `DOMNodeInserted` event. */
        emitChildNodeInserted(params: DOM.ChildNodeInsertedEvent): void;

        /** Mirrors `DOMNodeRemoved` event. */
        emitChildNodeRemoved(params: DOM.ChildNodeRemovedEvent): void;

        /** Called when distrubution is changed. */
        emitDistributedNodesUpdated(params: DOM.DistributedNodesUpdatedEvent): void;

        /** Fired when `Document` has been totally updated. Node ids are no longer valid. */
        emitDocumentUpdated(): void;

        /** Fired when `Element`'s inline style is modified via a CSS property modification. */
        emitInlineStyleInvalidated(params: DOM.InlineStyleInvalidatedEvent): void;

        /** Called when a pseudo element is added to an element. */
        emitPseudoElementAdded(params: DOM.PseudoElementAddedEvent): void;

        /** Called when a pseudo element is removed from an element. */
        emitPseudoElementRemoved(params: DOM.PseudoElementRemovedEvent): void;

        /** Fired when backend wants to provide client with the missing DOM structure. This happens upon
most of the calls requesting node ids. */
        emitSetChildNodes(params: DOM.SetChildNodesEvent): void;

        /** Called when shadow root is popped from the element. */
        emitShadowRootPopped(params: DOM.ShadowRootPoppedEvent): void;

        /** Called when shadow root is pushed into the element. */
        emitShadowRootPushed(params: DOM.ShadowRootPushedEvent): void;

        expose(domain: DOMCommands): void;

    }

    /** DOM debugging allows setting breakpoints on particular DOM operations and events. JavaScript
execution will stop on these operations as if there was a regular breakpoint set. */
    export module DOMDebugger {

        /** DOM breakpoint type. */
        export type DOMBreakpointType = ('subtree-modified' | 'attribute-modified' | 'node-removed');

        /** Object event listener. */
        export interface EventListener {
            /** `EventListener`'s type. */
            type: string;

            /** `EventListener`'s useCapture. */
            useCapture: boolean;

            /** `EventListener`'s passive flag. */
            passive: boolean;

            /** `EventListener`'s once flag. */
            once: boolean;

            /** Script id of the handler code. */
            scriptId: Runtime.ScriptId;

            /** Line number in the script (0-based). */
            lineNumber: integer;

            /** Column number in the script (0-based). */
            columnNumber: integer;

            /** Event handler function value. */
            handler?: Runtime.RemoteObject;

            /** Event original handler function value. */
            originalHandler?: Runtime.RemoteObject;

            /** Node the listener is added to (if any). */
            backendNodeId?: DOM.BackendNodeId;

        }

        export interface GetEventListenersRequest {
            /** Identifier of the object to return listeners for. */
            objectId: Runtime.RemoteObjectId;

            /** The maximum depth at which Node children should be retrieved, defaults to 1. Use -1 for the
entire subtree or provide an integer larger than 0. */
            depth?: integer;

            /** Whether or not iframes and shadow roots should be traversed when returning the subtree
(default is false). Reports listeners for all contexts if pierce is enabled. */
            pierce?: boolean;

        }

        export interface GetEventListenersResponse {
            /** Array of relevant listeners. */
            listeners: EventListener[];

        }

        export interface RemoveDOMBreakpointRequest {
            /** Identifier of the node to remove breakpoint from. */
            nodeId: DOM.NodeId;

            /** Type of the breakpoint to remove. */
            type: DOMBreakpointType;

        }

        export interface RemoveEventListenerBreakpointRequest {
            /** Event name. */
            eventName: string;

            /** EventTarget interface name. */
            targetName?: string;

        }

        export interface RemoveInstrumentationBreakpointRequest {
            /** Instrumentation name to stop on. */
            eventName: string;

        }

        export interface RemoveXHRBreakpointRequest {
            /** Resource URL substring. */
            url: string;

        }

        export interface SetDOMBreakpointRequest {
            /** Identifier of the node to set breakpoint on. */
            nodeId: DOM.NodeId;

            /** Type of the operation to stop upon. */
            type: DOMBreakpointType;

        }

        export interface SetEventListenerBreakpointRequest {
            /** DOM Event name to stop on (any DOM event will do). */
            eventName: string;

            /** EventTarget interface name to stop on. If equal to `"*"` or not provided, will stop on any
EventTarget. */
            targetName?: string;

        }

        export interface SetInstrumentationBreakpointRequest {
            /** Instrumentation name to stop on. */
            eventName: string;

        }

        export interface SetXHRBreakpointRequest {
            /** Resource URL substring. All XHRs having this substring in the URL will get stopped upon. */
            url: string;

        }
    }

    export interface DOMDebuggerCommands {
        /** Returns event listeners of the given object. */
        getEventListeners?: (params: DOMDebugger.GetEventListenersRequest) => Promise<DOMDebugger.GetEventListenersResponse>;

        /** Removes DOM breakpoint that was set using `setDOMBreakpoint`. */
        removeDOMBreakpoint?: (params: DOMDebugger.RemoveDOMBreakpointRequest) => Promise<void>;

        /** Removes breakpoint on particular DOM event. */
        removeEventListenerBreakpoint?: (params: DOMDebugger.RemoveEventListenerBreakpointRequest) => Promise<void>;

        /** Removes breakpoint on particular native event. */
        removeInstrumentationBreakpoint?: (params: DOMDebugger.RemoveInstrumentationBreakpointRequest) => Promise<void>;

        /** Removes breakpoint from XMLHttpRequest. */
        removeXHRBreakpoint?: (params: DOMDebugger.RemoveXHRBreakpointRequest) => Promise<void>;

        /** Sets breakpoint on particular operation with DOM. */
        setDOMBreakpoint?: (params: DOMDebugger.SetDOMBreakpointRequest) => Promise<void>;

        /** Sets breakpoint on particular DOM event. */
        setEventListenerBreakpoint?: (params: DOMDebugger.SetEventListenerBreakpointRequest) => Promise<void>;

        /** Sets breakpoint on particular native event. */
        setInstrumentationBreakpoint?: (params: DOMDebugger.SetInstrumentationBreakpointRequest) => Promise<void>;

        /** Sets breakpoint on XMLHttpRequest. */
        setXHRBreakpoint?: (params: DOMDebugger.SetXHRBreakpointRequest) => Promise<void>;

    }

    export interface DOMDebuggerClient extends DOMDebuggerCommands {
    }

    export interface DOMDebuggerServer {
        expose(domain: DOMDebuggerCommands): void;

    }

    /** This domain facilitates obtaining document snapshots with DOM, layout, and style information. */
    export module DOMSnapshot {

        /** A Node in the DOM tree. */
        export interface DOMNode {
            /** `Node`'s nodeType. */
            nodeType: integer;

            /** `Node`'s nodeName. */
            nodeName: string;

            /** `Node`'s nodeValue. */
            nodeValue: string;

            /** Only set for textarea elements, contains the text value. */
            textValue?: string;

            /** Only set for input elements, contains the input's associated text value. */
            inputValue?: string;

            /** Only set for radio and checkbox input elements, indicates if the element has been checked */
            inputChecked?: boolean;

            /** Only set for option elements, indicates if the element has been selected */
            optionSelected?: boolean;

            /** `Node`'s id, corresponds to DOM.Node.backendNodeId. */
            backendNodeId: DOM.BackendNodeId;

            /** The indexes of the node's child nodes in the `domNodes` array returned by `getSnapshot`, if
any. */
            childNodeIndexes?: integer[];

            /** Attributes of an `Element` node. */
            attributes?: NameValue[];

            /** Indexes of pseudo elements associated with this node in the `domNodes` array returned by
`getSnapshot`, if any. */
            pseudoElementIndexes?: integer[];

            /** The index of the node's related layout tree node in the `layoutTreeNodes` array returned by
`getSnapshot`, if any. */
            layoutNodeIndex?: integer;

            /** Document URL that `Document` or `FrameOwner` node points to. */
            documentURL?: string;

            /** Base URL that `Document` or `FrameOwner` node uses for URL completion. */
            baseURL?: string;

            /** Only set for documents, contains the document's content language. */
            contentLanguage?: string;

            /** Only set for documents, contains the document's character set encoding. */
            documentEncoding?: string;

            /** `DocumentType` node's publicId. */
            publicId?: string;

            /** `DocumentType` node's systemId. */
            systemId?: string;

            /** Frame ID for frame owner elements and also for the document node. */
            frameId?: Page.FrameId;

            /** The index of a frame owner element's content document in the `domNodes` array returned by
`getSnapshot`, if any. */
            contentDocumentIndex?: integer;

            /** Index of the imported document's node of a link element in the `domNodes` array returned by
`getSnapshot`, if any. */
            importedDocumentIndex?: integer;

            /** Index of the content node of a template element in the `domNodes` array returned by
`getSnapshot`. */
            templateContentIndex?: integer;

            /** Type of a pseudo element node. */
            pseudoType?: DOM.PseudoType;

            /** Whether this DOM node responds to mouse clicks. This includes nodes that have had click
event listeners attached via JavaScript as well as anchor tags that naturally navigate when
clicked. */
            isClickable?: boolean;

            /** Details of the node's event listeners, if any. */
            eventListeners?: DOMDebugger.EventListener[];

        }

        /** Details of post layout rendered text positions. The exact layout should not be regarded as
stable and may change between versions. */
        export interface InlineTextBox {
            /** The absolute position bounding box. */
            boundingBox: DOM.Rect;

            /** The starting index in characters, for this post layout textbox substring. */
            startCharacterIndex: integer;

            /** The number of characters in this post layout textbox substring. */
            numCharacters: integer;

        }

        /** Details of an element in the DOM tree with a LayoutObject. */
        export interface LayoutTreeNode {
            /** The index of the related DOM node in the `domNodes` array returned by `getSnapshot`. */
            domNodeIndex: integer;

            /** The absolute position bounding box. */
            boundingBox: DOM.Rect;

            /** Contents of the LayoutText, if any. */
            layoutText?: string;

            /** The post-layout inline text nodes, if any. */
            inlineTextNodes?: InlineTextBox[];

            /** Index into the `computedStyles` array returned by `getSnapshot`. */
            styleIndex?: integer;

        }

        /** A subset of the full ComputedStyle as defined by the request whitelist. */
        export interface ComputedStyle {
            /** Name/value pairs of computed style properties. */
            properties: NameValue[];

        }

        /** A name/value pair. */
        export interface NameValue {
            /** Attribute/property name. */
            name: string;

            /** Attribute/property value. */
            value: string;

        }

        export interface GetSnapshotRequest {
            /** Whitelist of computed styles to return. */
            computedStyleWhitelist: string[];

            /** Whether or not to retrieve details of DOM listeners (default false). */
            includeEventListeners?: boolean;

        }

        export interface GetSnapshotResponse {
            /** The nodes in the DOM tree. The DOMNode at index 0 corresponds to the root document. */
            domNodes: DOMNode[];

            /** The nodes in the layout tree. */
            layoutTreeNodes: LayoutTreeNode[];

            /** Whitelisted ComputedStyle properties for each node in the layout tree. */
            computedStyles: ComputedStyle[];

        }
    }

    export interface DOMSnapshotCommands {
        /** Returns a document snapshot, including the full DOM tree of the root node (including iframes,
template contents, and imported documents) in a flattened array, as well as layout and
white-listed computed style information for the nodes. Shadow DOM in the returned DOM tree is
flattened. */
        getSnapshot?: (params: DOMSnapshot.GetSnapshotRequest) => Promise<DOMSnapshot.GetSnapshotResponse>;

    }

    export interface DOMSnapshotClient extends DOMSnapshotCommands {
    }

    export interface DOMSnapshotServer {
        expose(domain: DOMSnapshotCommands): void;

    }

    /** Query and modify DOM storage. */
    export module DOMStorage {

        /** DOM Storage identifier. */
        export interface StorageId {
            /** Security origin for the storage. */
            securityOrigin: string;

            /** Whether the storage is local storage (not session storage). */
            isLocalStorage: boolean;

        }

        /** DOM Storage item. */
        export type Item = string[];

        export interface ClearRequest {
            storageId: StorageId;

        }

        export interface GetDOMStorageItemsRequest {
            storageId: StorageId;

        }

        export interface GetDOMStorageItemsResponse {
            entries: Item[];

        }

        export interface RemoveDOMStorageItemRequest {
            storageId: StorageId;

            key: string;

        }

        export interface SetDOMStorageItemRequest {
            storageId: StorageId;

            key: string;

            value: string;

        }

        export interface DomStorageItemAddedEvent {
            storageId: StorageId;

            key: string;

            newValue: string;

        }

        export interface DomStorageItemRemovedEvent {
            storageId: StorageId;

            key: string;

        }

        export interface DomStorageItemUpdatedEvent {
            storageId: StorageId;

            key: string;

            oldValue: string;

            newValue: string;

        }

        export interface DomStorageItemsClearedEvent {
            storageId: StorageId;

        }
    }

    export interface DOMStorageCommands {
        clear?: (params: DOMStorage.ClearRequest) => Promise<void>;

        /** Disables storage tracking, prevents storage events from being sent to the client. */
        disable?: () => Promise<void>;

        /** Enables storage tracking, storage events will now be delivered to the client. */
        enable?: () => Promise<void>;

        getDOMStorageItems?: (params: DOMStorage.GetDOMStorageItemsRequest) => Promise<DOMStorage.GetDOMStorageItemsResponse>;

        removeDOMStorageItem?: (params: DOMStorage.RemoveDOMStorageItemRequest) => Promise<void>;

        setDOMStorageItem?: (params: DOMStorage.SetDOMStorageItemRequest) => Promise<void>;

    }

    export interface DOMStorageClient extends DOMStorageCommands {
        onDomStorageItemAdded(handler: (params: DOMStorage.DomStorageItemAddedEvent) => void): void;

        onDomStorageItemRemoved(handler: (params: DOMStorage.DomStorageItemRemovedEvent) => void): void;

        onDomStorageItemUpdated(handler: (params: DOMStorage.DomStorageItemUpdatedEvent) => void): void;

        onDomStorageItemsCleared(handler: (params: DOMStorage.DomStorageItemsClearedEvent) => void): void;

    }

    export interface DOMStorageServer {
        emitDomStorageItemAdded(params: DOMStorage.DomStorageItemAddedEvent): void;

        emitDomStorageItemRemoved(params: DOMStorage.DomStorageItemRemovedEvent): void;

        emitDomStorageItemUpdated(params: DOMStorage.DomStorageItemUpdatedEvent): void;

        emitDomStorageItemsCleared(params: DOMStorage.DomStorageItemsClearedEvent): void;

        expose(domain: DOMStorageCommands): void;

    }

    export module Database {

        /** Unique identifier of Database object. */
        export type DatabaseId = string;

        /** Database object. */
        export interface Database {
            /** Database ID. */
            id: DatabaseId;

            /** Database domain. */
            domain: string;

            /** Database name. */
            name: string;

            /** Database version. */
            version: string;

        }

        /** Database error. */
        export interface Error {
            /** Error message. */
            message: string;

            /** Error code. */
            code: integer;

        }

        export interface ExecuteSQLRequest {
            databaseId: DatabaseId;

            query: string;

        }

        export interface ExecuteSQLResponse {
            columnNames?: string[];

            values?: any[];

            sqlError?: Error;

        }

        export interface GetDatabaseTableNamesRequest {
            databaseId: DatabaseId;

        }

        export interface GetDatabaseTableNamesResponse {
            tableNames: string[];

        }

        export interface AddDatabaseEvent {
            database: Database;

        }
    }

    export interface DatabaseCommands {
        /** Disables database tracking, prevents database events from being sent to the client. */
        disable?: () => Promise<void>;

        /** Enables database tracking, database events will now be delivered to the client. */
        enable?: () => Promise<void>;

        executeSQL?: (params: Database.ExecuteSQLRequest) => Promise<Database.ExecuteSQLResponse>;

        getDatabaseTableNames?: (params: Database.GetDatabaseTableNamesRequest) => Promise<Database.GetDatabaseTableNamesResponse>;

    }

    export interface DatabaseClient extends DatabaseCommands {
        onAddDatabase(handler: (params: Database.AddDatabaseEvent) => void): void;

    }

    export interface DatabaseServer {
        emitAddDatabase(params: Database.AddDatabaseEvent): void;

        expose(domain: DatabaseCommands): void;

    }

    export module DeviceOrientation {

        export interface SetDeviceOrientationOverrideRequest {
            /** Mock alpha */
            alpha: number;

            /** Mock beta */
            beta: number;

            /** Mock gamma */
            gamma: number;

        }
    }

    export interface DeviceOrientationCommands {
        /** Clears the overridden Device Orientation. */
        clearDeviceOrientationOverride?: () => Promise<void>;

        /** Overrides the Device Orientation. */
        setDeviceOrientationOverride?: (params: DeviceOrientation.SetDeviceOrientationOverrideRequest) => Promise<void>;

    }

    export interface DeviceOrientationClient extends DeviceOrientationCommands {
    }

    export interface DeviceOrientationServer {
        expose(domain: DeviceOrientationCommands): void;

    }

    /** This domain emulates different environments for the page. */
    export module Emulation {

        /** Screen orientation. */
        export interface ScreenOrientation {
            /** Orientation type. */
            type: ('portraitPrimary' | 'portraitSecondary' | 'landscapePrimary' | 'landscapeSecondary');

            /** Orientation angle. */
            angle: integer;

        }

        /** advance: If the scheduler runs out of immediate work, the virtual time base may fast forward to
allow the next delayed task (if any) to run; pause: The virtual time base may not advance;
pauseIfNetworkFetchesPending: The virtual time base may not advance if there are any pending
resource fetches. */
        export type VirtualTimePolicy = ('advance' | 'pause' | 'pauseIfNetworkFetchesPending');

        export interface CanEmulateResponse {
            /** True if emulation is supported. */
            result: boolean;

        }

        export interface SetCPUThrottlingRateRequest {
            /** Throttling rate as a slowdown factor (1 is no throttle, 2 is 2x slowdown, etc). */
            rate: number;

        }

        export interface SetDefaultBackgroundColorOverrideRequest {
            /** RGBA of the default background color. If not specified, any existing override will be
cleared. */
            color?: DOM.RGBA;

        }

        export interface SetDeviceMetricsOverrideRequest {
            /** Overriding width value in pixels (minimum 0, maximum 10000000). 0 disables the override. */
            width: integer;

            /** Overriding height value in pixels (minimum 0, maximum 10000000). 0 disables the override. */
            height: integer;

            /** Overriding device scale factor value. 0 disables the override. */
            deviceScaleFactor: number;

            /** Whether to emulate mobile device. This includes viewport meta tag, overlay scrollbars, text
autosizing and more. */
            mobile: boolean;

            /** Scale to apply to resulting view image. */
            scale?: number;

            /** Overriding screen width value in pixels (minimum 0, maximum 10000000). */
            screenWidth?: integer;

            /** Overriding screen height value in pixels (minimum 0, maximum 10000000). */
            screenHeight?: integer;

            /** Overriding view X position on screen in pixels (minimum 0, maximum 10000000). */
            positionX?: integer;

            /** Overriding view Y position on screen in pixels (minimum 0, maximum 10000000). */
            positionY?: integer;

            /** Do not set visible view size, rely upon explicit setVisibleSize call. */
            dontSetVisibleSize?: boolean;

            /** Screen orientation override. */
            screenOrientation?: ScreenOrientation;

            /** If set, the visible area of the page will be overridden to this viewport. This viewport
change is not observed by the page, e.g. viewport-relative elements do not change positions. */
            viewport?: Page.Viewport;

        }

        export interface SetEmitTouchEventsForMouseRequest {
            /** Whether touch emulation based on mouse input should be enabled. */
            enabled: boolean;

            /** Touch/gesture events configuration. Default: current platform. */
            configuration?: ('mobile' | 'desktop');

        }

        export interface SetEmulatedMediaRequest {
            /** Media type to emulate. Empty string disables the override. */
            media: string;

        }

        export interface SetGeolocationOverrideRequest {
            /** Mock latitude */
            latitude?: number;

            /** Mock longitude */
            longitude?: number;

            /** Mock accuracy */
            accuracy?: number;

        }

        export interface SetNavigatorOverridesRequest {
            /** The platform navigator.platform should return. */
            platform: string;

        }

        export interface SetPageScaleFactorRequest {
            /** Page scale factor. */
            pageScaleFactor: number;

        }

        export interface SetScriptExecutionDisabledRequest {
            /** Whether script execution should be disabled in the page. */
            value: boolean;

        }

        export interface SetTouchEmulationEnabledRequest {
            /** Whether the touch event emulation should be enabled. */
            enabled: boolean;

            /** Maximum touch points supported. Defaults to one. */
            maxTouchPoints?: integer;

        }

        export interface SetVirtualTimePolicyRequest {
            policy: VirtualTimePolicy;

            /** If set, after this many virtual milliseconds have elapsed virtual time will be paused and a
virtualTimeBudgetExpired event is sent. */
            budget?: number;

            /** If set this specifies the maximum number of tasks that can be run before virtual is forced
forwards to prevent deadlock. */
            maxVirtualTimeTaskStarvationCount?: integer;

            /** If set the virtual time policy change should be deferred until any frame starts navigating.
Note any previous deferred policy change is superseded. */
            waitForNavigation?: boolean;

        }

        export interface SetVirtualTimePolicyResponse {
            /** Absolute timestamp at which virtual time was first enabled (milliseconds since epoch). */
            virtualTimeBase: Runtime.Timestamp;

        }

        export interface SetVisibleSizeRequest {
            /** Frame width (DIP). */
            width: integer;

            /** Frame height (DIP). */
            height: integer;

        }

        export interface VirtualTimeAdvancedEvent {
            /** The amount of virtual time that has elapsed in milliseconds since virtual time was first
enabled. */
            virtualTimeElapsed: number;

        }

        export interface VirtualTimePausedEvent {
            /** The amount of virtual time that has elapsed in milliseconds since virtual time was first
enabled. */
            virtualTimeElapsed: number;

        }
    }

    export interface EmulationCommands {
        /** Tells whether emulation is supported. */
        canEmulate?: () => Promise<Emulation.CanEmulateResponse>;

        /** Clears the overriden device metrics. */
        clearDeviceMetricsOverride?: () => Promise<void>;

        /** Clears the overriden Geolocation Position and Error. */
        clearGeolocationOverride?: () => Promise<void>;

        /** Requests that page scale factor is reset to initial values. */
        resetPageScaleFactor?: () => Promise<void>;

        /** Enables CPU throttling to emulate slow CPUs. */
        setCPUThrottlingRate?: (params: Emulation.SetCPUThrottlingRateRequest) => Promise<void>;

        /** Sets or clears an override of the default background color of the frame. This override is used
if the content does not specify one. */
        setDefaultBackgroundColorOverride?: (params: Emulation.SetDefaultBackgroundColorOverrideRequest) => Promise<void>;

        /** Overrides the values of device screen dimensions (window.screen.width, window.screen.height,
window.innerWidth, window.innerHeight, and "device-width"/"device-height"-related CSS media
query results). */
        setDeviceMetricsOverride?: (params: Emulation.SetDeviceMetricsOverrideRequest) => Promise<void>;

        setEmitTouchEventsForMouse?: (params: Emulation.SetEmitTouchEventsForMouseRequest) => Promise<void>;

        /** Emulates the given media for CSS media queries. */
        setEmulatedMedia?: (params: Emulation.SetEmulatedMediaRequest) => Promise<void>;

        /** Overrides the Geolocation Position or Error. Omitting any of the parameters emulates position
unavailable. */
        setGeolocationOverride?: (params: Emulation.SetGeolocationOverrideRequest) => Promise<void>;

        /** Overrides value returned by the javascript navigator object. */
        setNavigatorOverrides?: (params: Emulation.SetNavigatorOverridesRequest) => Promise<void>;

        /** Sets a specified page scale factor. */
        setPageScaleFactor?: (params: Emulation.SetPageScaleFactorRequest) => Promise<void>;

        /** Switches script execution in the page. */
        setScriptExecutionDisabled?: (params: Emulation.SetScriptExecutionDisabledRequest) => Promise<void>;

        /** Enables touch on platforms which do not support them. */
        setTouchEmulationEnabled?: (params: Emulation.SetTouchEmulationEnabledRequest) => Promise<void>;

        /** Turns on virtual time for all frames (replacing real-time with a synthetic time source) and sets
the current virtual time policy.  Note this supersedes any previous time budget. */
        setVirtualTimePolicy?: (params: Emulation.SetVirtualTimePolicyRequest) => Promise<Emulation.SetVirtualTimePolicyResponse>;

        /** Resizes the frame/viewport of the page. Note that this does not affect the frame's container
(e.g. browser window). Can be used to produce screenshots of the specified size. Not supported
on Android. */
        setVisibleSize?: (params: Emulation.SetVisibleSizeRequest) => Promise<void>;

    }

    export interface EmulationClient extends EmulationCommands {
        /** Notification sent after the virtual time has advanced. */
        onVirtualTimeAdvanced(handler: (params: Emulation.VirtualTimeAdvancedEvent) => void): void;

        /** Notification sent after the virtual time budget for the current VirtualTimePolicy has run out. */
        onVirtualTimeBudgetExpired(handler: () => void): void;

        /** Notification sent after the virtual time has paused. */
        onVirtualTimePaused(handler: (params: Emulation.VirtualTimePausedEvent) => void): void;

    }

    export interface EmulationServer {
        /** Notification sent after the virtual time has advanced. */
        emitVirtualTimeAdvanced(params: Emulation.VirtualTimeAdvancedEvent): void;

        /** Notification sent after the virtual time budget for the current VirtualTimePolicy has run out. */
        emitVirtualTimeBudgetExpired(): void;

        /** Notification sent after the virtual time has paused. */
        emitVirtualTimePaused(params: Emulation.VirtualTimePausedEvent): void;

        expose(domain: EmulationCommands): void;

    }

    /** This domain provides experimental commands only supported in headless mode. */
    export module HeadlessExperimental {

        /** Encoding options for a screenshot. */
        export interface ScreenshotParams {
            /** Image compression format (defaults to png). */
            format?: ('jpeg' | 'png');

            /** Compression quality from range [0..100] (jpeg only). */
            quality?: integer;

        }

        export interface BeginFrameRequest {
            /** Timestamp of this BeginFrame (milliseconds since epoch). If not set, the current time will
be used. */
            frameTime?: Runtime.Timestamp;

            /** Deadline of this BeginFrame (milliseconds since epoch). If not set, the deadline will be
calculated from the frameTime and interval. */
            deadline?: Runtime.Timestamp;

            /** The interval between BeginFrames that is reported to the compositor, in milliseconds.
Defaults to a 60 frames/second interval, i.e. about 16.666 milliseconds. */
            interval?: number;

            /** Whether updates should not be committed and drawn onto the display. False by default. If
true, only side effects of the BeginFrame will be run, such as layout and animations, but
any visual updates may not be visible on the display or in screenshots. */
            noDisplayUpdates?: boolean;

            /** If set, a screenshot of the frame will be captured and returned in the response. Otherwise,
no screenshot will be captured. */
            screenshot?: ScreenshotParams;

        }

        export interface BeginFrameResponse {
            /** Whether the BeginFrame resulted in damage and, thus, a new frame was committed to the
display. */
            hasDamage: boolean;

            /** Whether the main frame submitted a new display frame in response to this BeginFrame. */
            mainFrameContentUpdated: boolean;

            /** Base64-encoded image data of the screenshot, if one was requested and successfully taken. */
            screenshotData?: string;

        }

        export interface NeedsBeginFramesChangedEvent {
            /** True if BeginFrames are needed, false otherwise. */
            needsBeginFrames: boolean;

        }
    }

    export interface HeadlessExperimentalCommands {
        /** Sends a BeginFrame to the target and returns when the frame was completed. Optionally captures a
screenshot from the resulting frame. Requires that the target was created with enabled
BeginFrameControl. */
        beginFrame?: (params: HeadlessExperimental.BeginFrameRequest) => Promise<HeadlessExperimental.BeginFrameResponse>;

        /** Disables headless events for the target. */
        disable?: () => Promise<void>;

        /** Enables headless events for the target. */
        enable?: () => Promise<void>;

    }

    export interface HeadlessExperimentalClient extends HeadlessExperimentalCommands {
        /** Issued when the main frame has first submitted a frame to the browser. May only be fired while a
BeginFrame is in flight. Before this event, screenshotting requests may fail. */
        onMainFrameReadyForScreenshots(handler: () => void): void;

        /** Issued when the target starts or stops needing BeginFrames. */
        onNeedsBeginFramesChanged(handler: (params: HeadlessExperimental.NeedsBeginFramesChangedEvent) => void): void;

    }

    export interface HeadlessExperimentalServer {
        /** Issued when the main frame has first submitted a frame to the browser. May only be fired while a
BeginFrame is in flight. Before this event, screenshotting requests may fail. */
        emitMainFrameReadyForScreenshots(): void;

        /** Issued when the target starts or stops needing BeginFrames. */
        emitNeedsBeginFramesChanged(params: HeadlessExperimental.NeedsBeginFramesChangedEvent): void;

        expose(domain: HeadlessExperimentalCommands): void;

    }

    /** Input/Output operations for streams produced by DevTools. */
    export module IO {

        /** This is either obtained from another method or specifed as `blob:&lt;uuid&gt;` where
`&lt;uuid&gt` is an UUID of a Blob. */
        export type StreamHandle = string;

        export interface CloseRequest {
            /** Handle of the stream to close. */
            handle: StreamHandle;

        }

        export interface ReadRequest {
            /** Handle of the stream to read. */
            handle: StreamHandle;

            /** Seek to the specified offset before reading (if not specificed, proceed with offset
following the last read). */
            offset?: integer;

            /** Maximum number of bytes to read (left upon the agent discretion if not specified). */
            size?: integer;

        }

        export interface ReadResponse {
            /** Set if the data is base64-encoded */
            base64Encoded?: boolean;

            /** Data that were read. */
            data: string;

            /** Set if the end-of-file condition occured while reading. */
            eof: boolean;

        }

        export interface ResolveBlobRequest {
            /** Object id of a Blob object wrapper. */
            objectId: Runtime.RemoteObjectId;

        }

        export interface ResolveBlobResponse {
            /** UUID of the specified Blob. */
            uuid: string;

        }
    }

    export interface IOCommands {
        /** Close the stream, discard any temporary backing storage. */
        close?: (params: IO.CloseRequest) => Promise<void>;

        /** Read a chunk of the stream */
        read?: (params: IO.ReadRequest) => Promise<IO.ReadResponse>;

        /** Return UUID of Blob object specified by a remote object id. */
        resolveBlob?: (params: IO.ResolveBlobRequest) => Promise<IO.ResolveBlobResponse>;

    }

    export interface IOClient extends IOCommands {
    }

    export interface IOServer {
        expose(domain: IOCommands): void;

    }

    export module IndexedDB {

        /** Database with an array of object stores. */
        export interface DatabaseWithObjectStores {
            /** Database name. */
            name: string;

            /** Database version. */
            version: integer;

            /** Object stores in this database. */
            objectStores: ObjectStore[];

        }

        /** Object store. */
        export interface ObjectStore {
            /** Object store name. */
            name: string;

            /** Object store key path. */
            keyPath: KeyPath;

            /** If true, object store has auto increment flag set. */
            autoIncrement: boolean;

            /** Indexes in this object store. */
            indexes: ObjectStoreIndex[];

        }

        /** Object store index. */
        export interface ObjectStoreIndex {
            /** Index name. */
            name: string;

            /** Index key path. */
            keyPath: KeyPath;

            /** If true, index is unique. */
            unique: boolean;

            /** If true, index allows multiple entries for a key. */
            multiEntry: boolean;

        }

        /** Key. */
        export interface Key {
            /** Key type. */
            type: ('number' | 'string' | 'date' | 'array');

            /** Number value. */
            number?: number;

            /** String value. */
            string?: string;

            /** Date value. */
            date?: number;

            /** Array value. */
            array?: Key[];

        }

        /** Key range. */
        export interface KeyRange {
            /** Lower bound. */
            lower?: Key;

            /** Upper bound. */
            upper?: Key;

            /** If true lower bound is open. */
            lowerOpen: boolean;

            /** If true upper bound is open. */
            upperOpen: boolean;

        }

        /** Data entry. */
        export interface DataEntry {
            /** Key object. */
            key: Runtime.RemoteObject;

            /** Primary key object. */
            primaryKey: Runtime.RemoteObject;

            /** Value object. */
            value: Runtime.RemoteObject;

        }

        /** Key path. */
        export interface KeyPath {
            /** Key path type. */
            type: ('null' | 'string' | 'array');

            /** String value. */
            string?: string;

            /** Array value. */
            array?: string[];

        }

        export interface ClearObjectStoreRequest {
            /** Security origin. */
            securityOrigin: string;

            /** Database name. */
            databaseName: string;

            /** Object store name. */
            objectStoreName: string;

        }

        export interface DeleteDatabaseRequest {
            /** Security origin. */
            securityOrigin: string;

            /** Database name. */
            databaseName: string;

        }

        export interface DeleteObjectStoreEntriesRequest {
            securityOrigin: string;

            databaseName: string;

            objectStoreName: string;

            /** Range of entry keys to delete */
            keyRange: KeyRange;

        }

        export interface RequestDataRequest {
            /** Security origin. */
            securityOrigin: string;

            /** Database name. */
            databaseName: string;

            /** Object store name. */
            objectStoreName: string;

            /** Index name, empty string for object store data requests. */
            indexName: string;

            /** Number of records to skip. */
            skipCount: integer;

            /** Number of records to fetch. */
            pageSize: integer;

            /** Key range. */
            keyRange?: KeyRange;

        }

        export interface RequestDataResponse {
            /** Array of object store data entries. */
            objectStoreDataEntries: DataEntry[];

            /** If true, there are more entries to fetch in the given range. */
            hasMore: boolean;

        }

        export interface RequestDatabaseRequest {
            /** Security origin. */
            securityOrigin: string;

            /** Database name. */
            databaseName: string;

        }

        export interface RequestDatabaseResponse {
            /** Database with an array of object stores. */
            databaseWithObjectStores: DatabaseWithObjectStores;

        }

        export interface RequestDatabaseNamesRequest {
            /** Security origin. */
            securityOrigin: string;

        }

        export interface RequestDatabaseNamesResponse {
            /** Database names for origin. */
            databaseNames: string[];

        }
    }

    export interface IndexedDBCommands {
        /** Clears all entries from an object store. */
        clearObjectStore?: (params: IndexedDB.ClearObjectStoreRequest) => Promise<void>;

        /** Deletes a database. */
        deleteDatabase?: (params: IndexedDB.DeleteDatabaseRequest) => Promise<void>;

        /** Delete a range of entries from an object store */
        deleteObjectStoreEntries?: (params: IndexedDB.DeleteObjectStoreEntriesRequest) => Promise<void>;

        /** Disables events from backend. */
        disable?: () => Promise<void>;

        /** Enables events from backend. */
        enable?: () => Promise<void>;

        /** Requests data from object store or index. */
        requestData?: (params: IndexedDB.RequestDataRequest) => Promise<IndexedDB.RequestDataResponse>;

        /** Requests database with given name in given frame. */
        requestDatabase?: (params: IndexedDB.RequestDatabaseRequest) => Promise<IndexedDB.RequestDatabaseResponse>;

        /** Requests database names for given security origin. */
        requestDatabaseNames?: (params: IndexedDB.RequestDatabaseNamesRequest) => Promise<IndexedDB.RequestDatabaseNamesResponse>;

    }

    export interface IndexedDBClient extends IndexedDBCommands {
    }

    export interface IndexedDBServer {
        expose(domain: IndexedDBCommands): void;

    }

    export module Input {

        export interface TouchPoint {
            /** X coordinate of the event relative to the main frame's viewport in CSS pixels. */
            x: number;

            /** Y coordinate of the event relative to the main frame's viewport in CSS pixels. 0 refers to
the top of the viewport and Y increases as it proceeds towards the bottom of the viewport. */
            y: number;

            /** X radius of the touch area (default: 1.0). */
            radiusX?: number;

            /** Y radius of the touch area (default: 1.0). */
            radiusY?: number;

            /** Rotation angle (default: 0.0). */
            rotationAngle?: number;

            /** Force (default: 1.0). */
            force?: number;

            /** Identifier used to track touch sources between events, must be unique within an event. */
            id?: number;

        }

        export type GestureSourceType = ('default' | 'touch' | 'mouse');

        /** UTC time in seconds, counted from January 1, 1970. */
        export type TimeSinceEpoch = number;

        export interface DispatchKeyEventRequest {
            /** Type of the key event. */
            type: ('keyDown' | 'keyUp' | 'rawKeyDown' | 'char');

            /** Bit field representing pressed modifier keys. Alt=1, Ctrl=2, Meta/Command=4, Shift=8
(default: 0). */
            modifiers?: integer;

            /** Time at which the event occurred. */
            timestamp?: TimeSinceEpoch;

            /** Text as generated by processing a virtual key code with a keyboard layout. Not needed for
for `keyUp` and `rawKeyDown` events (default: "") */
            text?: string;

            /** Text that would have been generated by the keyboard if no modifiers were pressed (except for
shift). Useful for shortcut (accelerator) key handling (default: ""). */
            unmodifiedText?: string;

            /** Unique key identifier (e.g., 'U+0041') (default: ""). */
            keyIdentifier?: string;

            /** Unique DOM defined string value for each physical key (e.g., 'KeyA') (default: ""). */
            code?: string;

            /** Unique DOM defined string value describing the meaning of the key in the context of active
modifiers, keyboard layout, etc (e.g., 'AltGr') (default: ""). */
            key?: string;

            /** Windows virtual key code (default: 0). */
            windowsVirtualKeyCode?: integer;

            /** Native virtual key code (default: 0). */
            nativeVirtualKeyCode?: integer;

            /** Whether the event was generated from auto repeat (default: false). */
            autoRepeat?: boolean;

            /** Whether the event was generated from the keypad (default: false). */
            isKeypad?: boolean;

            /** Whether the event was a system key event (default: false). */
            isSystemKey?: boolean;

            /** Whether the event was from the left or right side of the keyboard. 1=Left, 2=Right (default:
0). */
            location?: integer;

        }

        export interface DispatchMouseEventRequest {
            /** Type of the mouse event. */
            type: ('mousePressed' | 'mouseReleased' | 'mouseMoved' | 'mouseWheel');

            /** X coordinate of the event relative to the main frame's viewport in CSS pixels. */
            x: number;

            /** Y coordinate of the event relative to the main frame's viewport in CSS pixels. 0 refers to
the top of the viewport and Y increases as it proceeds towards the bottom of the viewport. */
            y: number;

            /** Bit field representing pressed modifier keys. Alt=1, Ctrl=2, Meta/Command=4, Shift=8
(default: 0). */
            modifiers?: integer;

            /** Time at which the event occurred. */
            timestamp?: TimeSinceEpoch;

            /** Mouse button (default: "none"). */
            button?: ('none' | 'left' | 'middle' | 'right');

            /** Number of times the mouse button was clicked (default: 0). */
            clickCount?: integer;

            /** X delta in CSS pixels for mouse wheel event (default: 0). */
            deltaX?: number;

            /** Y delta in CSS pixels for mouse wheel event (default: 0). */
            deltaY?: number;

        }

        export interface DispatchTouchEventRequest {
            /** Type of the touch event. TouchEnd and TouchCancel must not contain any touch points, while
TouchStart and TouchMove must contains at least one. */
            type: ('touchStart' | 'touchEnd' | 'touchMove' | 'touchCancel');

            /** Active touch points on the touch device. One event per any changed point (compared to
previous touch event in a sequence) is generated, emulating pressing/moving/releasing points
one by one. */
            touchPoints: TouchPoint[];

            /** Bit field representing pressed modifier keys. Alt=1, Ctrl=2, Meta/Command=4, Shift=8
(default: 0). */
            modifiers?: integer;

            /** Time at which the event occurred. */
            timestamp?: TimeSinceEpoch;

        }

        export interface EmulateTouchFromMouseEventRequest {
            /** Type of the mouse event. */
            type: ('mousePressed' | 'mouseReleased' | 'mouseMoved' | 'mouseWheel');

            /** X coordinate of the mouse pointer in DIP. */
            x: integer;

            /** Y coordinate of the mouse pointer in DIP. */
            y: integer;

            /** Time at which the event occurred. */
            timestamp: TimeSinceEpoch;

            /** Mouse button. */
            button: ('none' | 'left' | 'middle' | 'right');

            /** X delta in DIP for mouse wheel event (default: 0). */
            deltaX?: number;

            /** Y delta in DIP for mouse wheel event (default: 0). */
            deltaY?: number;

            /** Bit field representing pressed modifier keys. Alt=1, Ctrl=2, Meta/Command=4, Shift=8
(default: 0). */
            modifiers?: integer;

            /** Number of times the mouse button was clicked (default: 0). */
            clickCount?: integer;

        }

        export interface SetIgnoreInputEventsRequest {
            /** Ignores input events processing when set to true. */
            ignore: boolean;

        }

        export interface SynthesizePinchGestureRequest {
            /** X coordinate of the start of the gesture in CSS pixels. */
            x: number;

            /** Y coordinate of the start of the gesture in CSS pixels. */
            y: number;

            /** Relative scale factor after zooming (>1.0 zooms in, <1.0 zooms out). */
            scaleFactor: number;

            /** Relative pointer speed in pixels per second (default: 800). */
            relativeSpeed?: integer;

            /** Which type of input events to be generated (default: 'default', which queries the platform
for the preferred input type). */
            gestureSourceType?: GestureSourceType;

        }

        export interface SynthesizeScrollGestureRequest {
            /** X coordinate of the start of the gesture in CSS pixels. */
            x: number;

            /** Y coordinate of the start of the gesture in CSS pixels. */
            y: number;

            /** The distance to scroll along the X axis (positive to scroll left). */
            xDistance?: number;

            /** The distance to scroll along the Y axis (positive to scroll up). */
            yDistance?: number;

            /** The number of additional pixels to scroll back along the X axis, in addition to the given
distance. */
            xOverscroll?: number;

            /** The number of additional pixels to scroll back along the Y axis, in addition to the given
distance. */
            yOverscroll?: number;

            /** Prevent fling (default: true). */
            preventFling?: boolean;

            /** Swipe speed in pixels per second (default: 800). */
            speed?: integer;

            /** Which type of input events to be generated (default: 'default', which queries the platform
for the preferred input type). */
            gestureSourceType?: GestureSourceType;

            /** The number of times to repeat the gesture (default: 0). */
            repeatCount?: integer;

            /** The number of milliseconds delay between each repeat. (default: 250). */
            repeatDelayMs?: integer;

            /** The name of the interaction markers to generate, if not empty (default: ""). */
            interactionMarkerName?: string;

        }

        export interface SynthesizeTapGestureRequest {
            /** X coordinate of the start of the gesture in CSS pixels. */
            x: number;

            /** Y coordinate of the start of the gesture in CSS pixels. */
            y: number;

            /** Duration between touchdown and touchup events in ms (default: 50). */
            duration?: integer;

            /** Number of times to perform the tap (e.g. 2 for double tap, default: 1). */
            tapCount?: integer;

            /** Which type of input events to be generated (default: 'default', which queries the platform
for the preferred input type). */
            gestureSourceType?: GestureSourceType;

        }
    }

    export interface InputCommands {
        /** Dispatches a key event to the page. */
        dispatchKeyEvent?: (params: Input.DispatchKeyEventRequest) => Promise<void>;

        /** Dispatches a mouse event to the page. */
        dispatchMouseEvent?: (params: Input.DispatchMouseEventRequest) => Promise<void>;

        /** Dispatches a touch event to the page. */
        dispatchTouchEvent?: (params: Input.DispatchTouchEventRequest) => Promise<void>;

        /** Emulates touch event from the mouse event parameters. */
        emulateTouchFromMouseEvent?: (params: Input.EmulateTouchFromMouseEventRequest) => Promise<void>;

        /** Ignores input events (useful while auditing page). */
        setIgnoreInputEvents?: (params: Input.SetIgnoreInputEventsRequest) => Promise<void>;

        /** Synthesizes a pinch gesture over a time period by issuing appropriate touch events. */
        synthesizePinchGesture?: (params: Input.SynthesizePinchGestureRequest) => Promise<void>;

        /** Synthesizes a scroll gesture over a time period by issuing appropriate touch events. */
        synthesizeScrollGesture?: (params: Input.SynthesizeScrollGestureRequest) => Promise<void>;

        /** Synthesizes a tap gesture over a time period by issuing appropriate touch events. */
        synthesizeTapGesture?: (params: Input.SynthesizeTapGestureRequest) => Promise<void>;

    }

    export interface InputClient extends InputCommands {
    }

    export interface InputServer {
        expose(domain: InputCommands): void;

    }

    export module Inspector {

        export interface DetachedEvent {
            /** The reason why connection has been terminated. */
            reason: string;

        }
    }

    export interface InspectorCommands {
        /** Disables inspector domain notifications. */
        disable?: () => Promise<void>;

        /** Enables inspector domain notifications. */
        enable?: () => Promise<void>;

    }

    export interface InspectorClient extends InspectorCommands {
        /** Fired when remote debugging connection is about to be terminated. Contains detach reason. */
        onDetached(handler: (params: Inspector.DetachedEvent) => void): void;

        /** Fired when debugging target has crashed */
        onTargetCrashed(handler: () => void): void;

    }

    export interface InspectorServer {
        /** Fired when remote debugging connection is about to be terminated. Contains detach reason. */
        emitDetached(params: Inspector.DetachedEvent): void;

        /** Fired when debugging target has crashed */
        emitTargetCrashed(): void;

        expose(domain: InspectorCommands): void;

    }

    export module LayerTree {

        /** Unique Layer identifier. */
        export type LayerId = string;

        /** Unique snapshot identifier. */
        export type SnapshotId = string;

        /** Rectangle where scrolling happens on the main thread. */
        export interface ScrollRect {
            /** Rectangle itself. */
            rect: DOM.Rect;

            /** Reason for rectangle to force scrolling on the main thread */
            type: ('RepaintsOnScroll' | 'TouchEventHandler' | 'WheelEventHandler');

        }

        /** Sticky position constraints. */
        export interface StickyPositionConstraint {
            /** Layout rectangle of the sticky element before being shifted */
            stickyBoxRect: DOM.Rect;

            /** Layout rectangle of the containing block of the sticky element */
            containingBlockRect: DOM.Rect;

            /** The nearest sticky layer that shifts the sticky box */
            nearestLayerShiftingStickyBox?: LayerId;

            /** The nearest sticky layer that shifts the containing block */
            nearestLayerShiftingContainingBlock?: LayerId;

        }

        /** Serialized fragment of layer picture along with its offset within the layer. */
        export interface PictureTile {
            /** Offset from owning layer left boundary */
            x: number;

            /** Offset from owning layer top boundary */
            y: number;

            /** Base64-encoded snapshot data. */
            picture: string;

        }

        /** Information about a compositing layer. */
        export interface Layer {
            /** The unique id for this layer. */
            layerId: LayerId;

            /** The id of parent (not present for root). */
            parentLayerId?: LayerId;

            /** The backend id for the node associated with this layer. */
            backendNodeId?: DOM.BackendNodeId;

            /** Offset from parent layer, X coordinate. */
            offsetX: number;

            /** Offset from parent layer, Y coordinate. */
            offsetY: number;

            /** Layer width. */
            width: number;

            /** Layer height. */
            height: number;

            /** Transformation matrix for layer, default is identity matrix */
            transform?: number[];

            /** Transform anchor point X, absent if no transform specified */
            anchorX?: number;

            /** Transform anchor point Y, absent if no transform specified */
            anchorY?: number;

            /** Transform anchor point Z, absent if no transform specified */
            anchorZ?: number;

            /** Indicates how many time this layer has painted. */
            paintCount: integer;

            /** Indicates whether this layer hosts any content, rather than being used for
transform/scrolling purposes only. */
            drawsContent: boolean;

            /** Set if layer is not visible. */
            invisible?: boolean;

            /** Rectangles scrolling on main thread only. */
            scrollRects?: ScrollRect[];

            /** Sticky position constraint information */
            stickyPositionConstraint?: StickyPositionConstraint;

        }

        /** Array of timings, one per paint step. */
        export type PaintProfile = number[];

        export interface CompositingReasonsRequest {
            /** The id of the layer for which we want to get the reasons it was composited. */
            layerId: LayerId;

        }

        export interface CompositingReasonsResponse {
            /** A list of strings specifying reasons for the given layer to become composited. */
            compositingReasons: string[];

        }

        export interface LoadSnapshotRequest {
            /** An array of tiles composing the snapshot. */
            tiles: PictureTile[];

        }

        export interface LoadSnapshotResponse {
            /** The id of the snapshot. */
            snapshotId: SnapshotId;

        }

        export interface MakeSnapshotRequest {
            /** The id of the layer. */
            layerId: LayerId;

        }

        export interface MakeSnapshotResponse {
            /** The id of the layer snapshot. */
            snapshotId: SnapshotId;

        }

        export interface ProfileSnapshotRequest {
            /** The id of the layer snapshot. */
            snapshotId: SnapshotId;

            /** The maximum number of times to replay the snapshot (1, if not specified). */
            minRepeatCount?: integer;

            /** The minimum duration (in seconds) to replay the snapshot. */
            minDuration?: number;

            /** The clip rectangle to apply when replaying the snapshot. */
            clipRect?: DOM.Rect;

        }

        export interface ProfileSnapshotResponse {
            /** The array of paint profiles, one per run. */
            timings: PaintProfile[];

        }

        export interface ReleaseSnapshotRequest {
            /** The id of the layer snapshot. */
            snapshotId: SnapshotId;

        }

        export interface ReplaySnapshotRequest {
            /** The id of the layer snapshot. */
            snapshotId: SnapshotId;

            /** The first step to replay from (replay from the very start if not specified). */
            fromStep?: integer;

            /** The last step to replay to (replay till the end if not specified). */
            toStep?: integer;

            /** The scale to apply while replaying (defaults to 1). */
            scale?: number;

        }

        export interface ReplaySnapshotResponse {
            /** A data: URL for resulting image. */
            dataURL: string;

        }

        export interface SnapshotCommandLogRequest {
            /** The id of the layer snapshot. */
            snapshotId: SnapshotId;

        }

        export interface SnapshotCommandLogResponse {
            /** The array of canvas function calls. */
            commandLog: any[];

        }

        export interface LayerPaintedEvent {
            /** The id of the painted layer. */
            layerId: LayerId;

            /** Clip rectangle. */
            clip: DOM.Rect;

        }

        export interface LayerTreeDidChangeEvent {
            /** Layer tree, absent if not in the comspositing mode. */
            layers?: Layer[];

        }
    }

    export interface LayerTreeCommands {
        /** Provides the reasons why the given layer was composited. */
        compositingReasons?: (params: LayerTree.CompositingReasonsRequest) => Promise<LayerTree.CompositingReasonsResponse>;

        /** Disables compositing tree inspection. */
        disable?: () => Promise<void>;

        /** Enables compositing tree inspection. */
        enable?: () => Promise<void>;

        /** Returns the snapshot identifier. */
        loadSnapshot?: (params: LayerTree.LoadSnapshotRequest) => Promise<LayerTree.LoadSnapshotResponse>;

        /** Returns the layer snapshot identifier. */
        makeSnapshot?: (params: LayerTree.MakeSnapshotRequest) => Promise<LayerTree.MakeSnapshotResponse>;

        profileSnapshot?: (params: LayerTree.ProfileSnapshotRequest) => Promise<LayerTree.ProfileSnapshotResponse>;

        /** Releases layer snapshot captured by the back-end. */
        releaseSnapshot?: (params: LayerTree.ReleaseSnapshotRequest) => Promise<void>;

        /** Replays the layer snapshot and returns the resulting bitmap. */
        replaySnapshot?: (params: LayerTree.ReplaySnapshotRequest) => Promise<LayerTree.ReplaySnapshotResponse>;

        /** Replays the layer snapshot and returns canvas log. */
        snapshotCommandLog?: (params: LayerTree.SnapshotCommandLogRequest) => Promise<LayerTree.SnapshotCommandLogResponse>;

    }

    export interface LayerTreeClient extends LayerTreeCommands {
        onLayerPainted(handler: (params: LayerTree.LayerPaintedEvent) => void): void;

        onLayerTreeDidChange(handler: (params: LayerTree.LayerTreeDidChangeEvent) => void): void;

    }

    export interface LayerTreeServer {
        emitLayerPainted(params: LayerTree.LayerPaintedEvent): void;

        emitLayerTreeDidChange(params: LayerTree.LayerTreeDidChangeEvent): void;

        expose(domain: LayerTreeCommands): void;

    }

    /** Provides access to log entries. */
    export module Log {

        /** Log entry. */
        export interface LogEntry {
            /** Log entry source. */
            source: ('xml' | 'javascript' | 'network' | 'storage' | 'appcache' | 'rendering' | 'security' | 'deprecation' | 'worker' | 'violation' | 'intervention' | 'recommendation' | 'other');

            /** Log entry severity. */
            level: ('verbose' | 'info' | 'warning' | 'error');

            /** Logged text. */
            text: string;

            /** Timestamp when this entry was added. */
            timestamp: Runtime.Timestamp;

            /** URL of the resource if known. */
            url?: string;

            /** Line number in the resource. */
            lineNumber?: integer;

            /** JavaScript stack trace. */
            stackTrace?: Runtime.StackTrace;

            /** Identifier of the network request associated with this entry. */
            networkRequestId?: Network.RequestId;

            /** Identifier of the worker associated with this entry. */
            workerId?: string;

            /** Call arguments. */
            args?: Runtime.RemoteObject[];

        }

        /** Violation configuration setting. */
        export interface ViolationSetting {
            /** Violation type. */
            name: ('longTask' | 'longLayout' | 'blockedEvent' | 'blockedParser' | 'discouragedAPIUse' | 'handler' | 'recurringHandler');

            /** Time threshold to trigger upon. */
            threshold: number;

        }

        export interface StartViolationsReportRequest {
            /** Configuration for violations. */
            config: ViolationSetting[];

        }

        export interface EntryAddedEvent {
            /** The entry. */
            entry: LogEntry;

        }
    }

    export interface LogCommands {
        /** Clears the log. */
        clear?: () => Promise<void>;

        /** Disables log domain, prevents further log entries from being reported to the client. */
        disable?: () => Promise<void>;

        /** Enables log domain, sends the entries collected so far to the client by means of the
`entryAdded` notification. */
        enable?: () => Promise<void>;

        /** start violation reporting. */
        startViolationsReport?: (params: Log.StartViolationsReportRequest) => Promise<void>;

        /** Stop violation reporting. */
        stopViolationsReport?: () => Promise<void>;

    }

    export interface LogClient extends LogCommands {
        /** Issued when new message was logged. */
        onEntryAdded(handler: (params: Log.EntryAddedEvent) => void): void;

    }

    export interface LogServer {
        /** Issued when new message was logged. */
        emitEntryAdded(params: Log.EntryAddedEvent): void;

        expose(domain: LogCommands): void;

    }

    export module Memory {

        /** Memory pressure level. */
        export type PressureLevel = ('moderate' | 'critical');

        export interface GetDOMCountersResponse {
            documents: integer;

            nodes: integer;

            jsEventListeners: integer;

        }

        export interface SetPressureNotificationsSuppressedRequest {
            /** If true, memory pressure notifications will be suppressed. */
            suppressed: boolean;

        }

        export interface SimulatePressureNotificationRequest {
            /** Memory pressure level of the notification. */
            level: PressureLevel;

        }
    }

    export interface MemoryCommands {
        getDOMCounters?: () => Promise<Memory.GetDOMCountersResponse>;

        prepareForLeakDetection?: () => Promise<void>;

        /** Enable/disable suppressing memory pressure notifications in all processes. */
        setPressureNotificationsSuppressed?: (params: Memory.SetPressureNotificationsSuppressedRequest) => Promise<void>;

        /** Simulate a memory pressure notification in all processes. */
        simulatePressureNotification?: (params: Memory.SimulatePressureNotificationRequest) => Promise<void>;

    }

    export interface MemoryClient extends MemoryCommands {
    }

    export interface MemoryServer {
        expose(domain: MemoryCommands): void;

    }

    /** Network domain allows tracking network activities of the page. It exposes information about http,
file, data and other requests and responses, their headers, bodies, timing, etc. */
    export module Network {

        /** Unique loader identifier. */
        export type LoaderId = string;

        /** Unique request identifier. */
        export type RequestId = string;

        /** Unique intercepted request identifier. */
        export type InterceptionId = string;

        /** Network level fetch failure reason. */
        export type ErrorReason = ('Failed' | 'Aborted' | 'TimedOut' | 'AccessDenied' | 'ConnectionClosed' | 'ConnectionReset' | 'ConnectionRefused' | 'ConnectionAborted' | 'ConnectionFailed' | 'NameNotResolved' | 'InternetDisconnected' | 'AddressUnreachable');

        /** UTC time in seconds, counted from January 1, 1970. */
        export type TimeSinceEpoch = number;

        /** Monotonically increasing time in seconds since an arbitrary point in the past. */
        export type MonotonicTime = number;

        /** Request / response headers as keys / values of JSON object. */
        export interface Headers {
            [key: string]: string;
        }

        /** The underlying connection technology that the browser is supposedly using. */
        export type ConnectionType = ('none' | 'cellular2g' | 'cellular3g' | 'cellular4g' | 'bluetooth' | 'ethernet' | 'wifi' | 'wimax' | 'other');

        /** Represents the cookie's 'SameSite' status:
https://tools.ietf.org/html/draft-west-first-party-cookies */
        export type CookieSameSite = ('Strict' | 'Lax');

        /** Timing information for the request. */
        export interface ResourceTiming {
            /** Timing's requestTime is a baseline in seconds, while the other numbers are ticks in
milliseconds relatively to this requestTime. */
            requestTime: number;

            /** Started resolving proxy. */
            proxyStart: number;

            /** Finished resolving proxy. */
            proxyEnd: number;

            /** Started DNS address resolve. */
            dnsStart: number;

            /** Finished DNS address resolve. */
            dnsEnd: number;

            /** Started connecting to the remote host. */
            connectStart: number;

            /** Connected to the remote host. */
            connectEnd: number;

            /** Started SSL handshake. */
            sslStart: number;

            /** Finished SSL handshake. */
            sslEnd: number;

            /** Started running ServiceWorker. */
            workerStart: number;

            /** Finished Starting ServiceWorker. */
            workerReady: number;

            /** Started sending request. */
            sendStart: number;

            /** Finished sending request. */
            sendEnd: number;

            /** Time the server started pushing request. */
            pushStart: number;

            /** Time the server finished pushing request. */
            pushEnd: number;

            /** Finished receiving response headers. */
            receiveHeadersEnd: number;

        }

        /** Loading priority of a resource request. */
        export type ResourcePriority = ('VeryLow' | 'Low' | 'Medium' | 'High' | 'VeryHigh');

        /** HTTP request data. */
        export interface Request {
            /** Request URL. */
            url: string;

            /** HTTP request method. */
            method: string;

            /** HTTP request headers. */
            headers: Headers;

            /** HTTP POST request data. */
            postData?: string;

            /** True when the request has POST data. Note that postData might still be omitted when this flag is true when the data is too long. */
            hasPostData?: boolean;

            /** The mixed content type of the request. */
            mixedContentType?: Security.MixedContentType;

            /** Priority of the resource request at the time request is sent. */
            initialPriority: ResourcePriority;

            /** The referrer policy of the request, as defined in https://www.w3.org/TR/referrer-policy/ */
            referrerPolicy: ('unsafe-url' | 'no-referrer-when-downgrade' | 'no-referrer' | 'origin' | 'origin-when-cross-origin' | 'same-origin' | 'strict-origin' | 'strict-origin-when-cross-origin');

            /** Whether is loaded via link preload. */
            isLinkPreload?: boolean;

        }

        /** Details of a signed certificate timestamp (SCT). */
        export interface SignedCertificateTimestamp {
            /** Validation status. */
            status: string;

            /** Origin. */
            origin: string;

            /** Log name / description. */
            logDescription: string;

            /** Log ID. */
            logId: string;

            /** Issuance date. */
            timestamp: TimeSinceEpoch;

            /** Hash algorithm. */
            hashAlgorithm: string;

            /** Signature algorithm. */
            signatureAlgorithm: string;

            /** Signature data. */
            signatureData: string;

        }

        /** Security details about a request. */
        export interface SecurityDetails {
            /** Protocol name (e.g. "TLS 1.2" or "QUIC"). */
            protocol: string;

            /** Key Exchange used by the connection, or the empty string if not applicable. */
            keyExchange: string;

            /** (EC)DH group used by the connection, if applicable. */
            keyExchangeGroup?: string;

            /** Cipher name. */
            cipher: string;

            /** TLS MAC. Note that AEAD ciphers do not have separate MACs. */
            mac?: string;

            /** Certificate ID value. */
            certificateId: Security.CertificateId;

            /** Certificate subject name. */
            subjectName: string;

            /** Subject Alternative Name (SAN) DNS names and IP addresses. */
            sanList: string[];

            /** Name of the issuing CA. */
            issuer: string;

            /** Certificate valid from date. */
            validFrom: TimeSinceEpoch;

            /** Certificate valid to (expiration) date */
            validTo: TimeSinceEpoch;

            /** List of signed certificate timestamps (SCTs). */
            signedCertificateTimestampList: SignedCertificateTimestamp[];

        }

        /** The reason why request was blocked. */
        export type BlockedReason = ('csp' | 'mixed-content' | 'origin' | 'inspector' | 'subresource-filter' | 'other');

        /** HTTP response data. */
        export interface Response {
            /** Response URL. This URL can be different from CachedResource.url in case of redirect. */
            url: string;

            /** HTTP response status code. */
            status: integer;

            /** HTTP response status text. */
            statusText: string;

            /** HTTP response headers. */
            headers: Headers;

            /** HTTP response headers text. */
            headersText?: string;

            /** Resource mimeType as determined by the browser. */
            mimeType: string;

            /** Refined HTTP request headers that were actually transmitted over the network. */
            requestHeaders?: Headers;

            /** HTTP request headers text. */
            requestHeadersText?: string;

            /** Specifies whether physical connection was actually reused for this request. */
            connectionReused: boolean;

            /** Physical connection id that was actually used for this request. */
            connectionId: number;

            /** Remote IP address. */
            remoteIPAddress?: string;

            /** Remote port. */
            remotePort?: integer;

            /** Specifies that the request was served from the disk cache. */
            fromDiskCache?: boolean;

            /** Specifies that the request was served from the ServiceWorker. */
            fromServiceWorker?: boolean;

            /** Total number of bytes received for this request so far. */
            encodedDataLength: number;

            /** Timing information for the given request. */
            timing?: ResourceTiming;

            /** Protocol used to fetch this request. */
            protocol?: string;

            /** Security state of the request resource. */
            securityState: Security.SecurityState;

            /** Security details for the request. */
            securityDetails?: SecurityDetails;

        }

        /** WebSocket request data. */
        export interface WebSocketRequest {
            /** HTTP request headers. */
            headers: Headers;

        }

        /** WebSocket response data. */
        export interface WebSocketResponse {
            /** HTTP response status code. */
            status: integer;

            /** HTTP response status text. */
            statusText: string;

            /** HTTP response headers. */
            headers: Headers;

            /** HTTP response headers text. */
            headersText?: string;

            /** HTTP request headers. */
            requestHeaders?: Headers;

            /** HTTP request headers text. */
            requestHeadersText?: string;

        }

        /** WebSocket frame data. */
        export interface WebSocketFrame {
            /** WebSocket frame opcode. */
            opcode: number;

            /** WebSocke frame mask. */
            mask: boolean;

            /** WebSocke frame payload data. */
            payloadData: string;

        }

        /** Information about the cached resource. */
        export interface CachedResource {
            /** Resource URL. This is the url of the original network request. */
            url: string;

            /** Type of this resource. */
            type: Page.ResourceType;

            /** Cached response data. */
            response?: Response;

            /** Cached response body size. */
            bodySize: number;

        }

        /** Information about the request initiator. */
        export interface Initiator {
            /** Type of this initiator. */
            type: ('parser' | 'script' | 'preload' | 'other');

            /** Initiator JavaScript stack trace, set for Script only. */
            stack?: Runtime.StackTrace;

            /** Initiator URL, set for Parser type or for Script type (when script is importing module). */
            url?: string;

            /** Initiator line number, set for Parser type or for Script type (when script is importing
module) (0-based). */
            lineNumber?: number;

        }

        /** Cookie object */
        export interface Cookie {
            /** Cookie name. */
            name: string;

            /** Cookie value. */
            value: string;

            /** Cookie domain. */
            domain: string;

            /** Cookie path. */
            path: string;

            /** Cookie expiration date as the number of seconds since the UNIX epoch. */
            expires: number;

            /** Cookie size. */
            size: integer;

            /** True if cookie is http-only. */
            httpOnly: boolean;

            /** True if cookie is secure. */
            secure: boolean;

            /** True in case of session cookie. */
            session: boolean;

            /** Cookie SameSite type. */
            sameSite?: CookieSameSite;

        }

        /** Cookie parameter object */
        export interface CookieParam {
            /** Cookie name. */
            name: string;

            /** Cookie value. */
            value: string;

            /** The request-URI to associate with the setting of the cookie. This value can affect the
default domain and path values of the created cookie. */
            url?: string;

            /** Cookie domain. */
            domain?: string;

            /** Cookie path. */
            path?: string;

            /** True if cookie is secure. */
            secure?: boolean;

            /** True if cookie is http-only. */
            httpOnly?: boolean;

            /** Cookie SameSite type. */
            sameSite?: CookieSameSite;

            /** Cookie expiration date, session cookie if not set */
            expires?: TimeSinceEpoch;

        }

        /** Authorization challenge for HTTP status code 401 or 407. */
        export interface AuthChallenge {
            /** Source of the authentication challenge. */
            source?: ('Server' | 'Proxy');

            /** Origin of the challenger. */
            origin: string;

            /** The authentication scheme used, such as basic or digest */
            scheme: string;

            /** The realm of the challenge. May be empty. */
            realm: string;

        }

        /** Response to an AuthChallenge. */
        export interface AuthChallengeResponse {
            /** The decision on what to do in response to the authorization challenge.  Default means
deferring to the default behavior of the net stack, which will likely either the Cancel
authentication or display a popup dialog box. */
            response: ('Default' | 'CancelAuth' | 'ProvideCredentials');

            /** The username to provide, possibly empty. Should only be set if response is
ProvideCredentials. */
            username?: string;

            /** The password to provide, possibly empty. Should only be set if response is
ProvideCredentials. */
            password?: string;

        }

        /** Stages of the interception to begin intercepting. Request will intercept before the request is
sent. Response will intercept after the response is received. */
        export type InterceptionStage = ('Request' | 'HeadersReceived');

        /** Request pattern for interception. */
        export interface RequestPattern {
            /** Wildcards ('*' -> zero or more, '?' -> exactly one) are allowed. Escape character is
backslash. Omitting is equivalent to "*". */
            urlPattern?: string;

            /** If set, only requests for matching resource types will be intercepted. */
            resourceType?: Page.ResourceType;

            /** Stage at wich to begin intercepting requests. Default is Request. */
            interceptionStage?: InterceptionStage;

        }

        export interface CanClearBrowserCacheResponse {
            /** True if browser cache can be cleared. */
            result: boolean;

        }

        export interface CanClearBrowserCookiesResponse {
            /** True if browser cookies can be cleared. */
            result: boolean;

        }

        export interface CanEmulateNetworkConditionsResponse {
            /** True if emulation of network conditions is supported. */
            result: boolean;

        }

        export interface ContinueInterceptedRequestRequest {
            interceptionId: InterceptionId;

            /** If set this causes the request to fail with the given reason. Passing `Aborted` for requests
marked with `isNavigationRequest` also cancels the navigation. Must not be set in response
to an authChallenge. */
            errorReason?: ErrorReason;

            /** If set the requests completes using with the provided base64 encoded raw response, including
HTTP status line and headers etc... Must not be set in response to an authChallenge. */
            rawResponse?: string;

            /** If set the request url will be modified in a way that's not observable by page. Must not be
set in response to an authChallenge. */
            url?: string;

            /** If set this allows the request method to be overridden. Must not be set in response to an
authChallenge. */
            method?: string;

            /** If set this allows postData to be set. Must not be set in response to an authChallenge. */
            postData?: string;

            /** If set this allows the request headers to be changed. Must not be set in response to an
authChallenge. */
            headers?: Headers;

            /** Response to a requestIntercepted with an authChallenge. Must not be set otherwise. */
            authChallengeResponse?: AuthChallengeResponse;

        }

        export interface DeleteCookiesRequest {
            /** Name of the cookies to remove. */
            name: string;

            /** If specified, deletes all the cookies with the given name where domain and path match
provided URL. */
            url?: string;

            /** If specified, deletes only cookies with the exact domain. */
            domain?: string;

            /** If specified, deletes only cookies with the exact path. */
            path?: string;

        }

        export interface EmulateNetworkConditionsRequest {
            /** True to emulate internet disconnection. */
            offline: boolean;

            /** Minimum latency from request sent to response headers received (ms). */
            latency: number;

            /** Maximal aggregated download throughput (bytes/sec). -1 disables download throttling. */
            downloadThroughput: number;

            /** Maximal aggregated upload throughput (bytes/sec).  -1 disables upload throttling. */
            uploadThroughput: number;

            /** Connection type if known. */
            connectionType?: ConnectionType;

        }

        export interface EnableRequest {
            /** Buffer size in bytes to use when preserving network payloads (XHRs, etc). */
            maxTotalBufferSize?: integer;

            /** Per-resource buffer size in bytes to use when preserving network payloads (XHRs, etc). */
            maxResourceBufferSize?: integer;

            /** Longest post body size (in bytes) that would be included in requestWillBeSent notification */
            maxPostDataSize?: integer;

        }

        export interface GetAllCookiesResponse {
            /** Array of cookie objects. */
            cookies: Cookie[];

        }

        export interface GetCertificateRequest {
            /** Origin to get certificate for. */
            origin: string;

        }

        export interface GetCertificateResponse {
            tableNames: string[];

        }

        export interface GetCookiesRequest {
            /** The list of URLs for which applicable cookies will be fetched */
            urls?: string[];

        }

        export interface GetCookiesResponse {
            /** Array of cookie objects. */
            cookies: Cookie[];

        }

        export interface GetResponseBodyRequest {
            /** Identifier of the network request to get content for. */
            requestId: RequestId;

        }

        export interface GetResponseBodyResponse {
            /** Response body. */
            body: string;

            /** True, if content was sent as base64. */
            base64Encoded: boolean;

        }

        export interface GetRequestPostDataRequest {
            /** Identifier of the network request to get content for. */
            requestId: RequestId;

        }

        export interface GetRequestPostDataResponse {
            /** Base64-encoded request body. */
            postData: string;

        }

        export interface GetResponseBodyForInterceptionRequest {
            /** Identifier for the intercepted request to get body for. */
            interceptionId: InterceptionId;

        }

        export interface GetResponseBodyForInterceptionResponse {
            /** Response body. */
            body: string;

            /** True, if content was sent as base64. */
            base64Encoded: boolean;

        }

        export interface ReplayXHRRequest {
            /** Identifier of XHR to replay. */
            requestId: RequestId;

        }

        export interface SearchInResponseBodyRequest {
            /** Identifier of the network response to search. */
            requestId: RequestId;

            /** String to search for. */
            query: string;

            /** If true, search is case sensitive. */
            caseSensitive?: boolean;

            /** If true, treats string parameter as regex. */
            isRegex?: boolean;

        }

        export interface SearchInResponseBodyResponse {
            /** List of search matches. */
            result: Debugger.SearchMatch[];

        }

        export interface SetBlockedURLsRequest {
            /** URL patterns to block. Wildcards ('*') are allowed. */
            urls: string[];

        }

        export interface SetBypassServiceWorkerRequest {
            /** Bypass service worker and load from network. */
            bypass: boolean;

        }

        export interface SetCacheDisabledRequest {
            /** Cache disabled state. */
            cacheDisabled: boolean;

        }

        export interface SetCookieRequest {
            /** Cookie name. */
            name: string;

            /** Cookie value. */
            value: string;

            /** The request-URI to associate with the setting of the cookie. This value can affect the
default domain and path values of the created cookie. */
            url?: string;

            /** Cookie domain. */
            domain?: string;

            /** Cookie path. */
            path?: string;

            /** True if cookie is secure. */
            secure?: boolean;

            /** True if cookie is http-only. */
            httpOnly?: boolean;

            /** Cookie SameSite type. */
            sameSite?: CookieSameSite;

            /** Cookie expiration date, session cookie if not set */
            expires?: TimeSinceEpoch;

        }

        export interface SetCookieResponse {
            /** True if successfully set cookie. */
            success: boolean;

        }

        export interface SetCookiesRequest {
            /** Cookies to be set. */
            cookies: CookieParam[];

        }

        export interface SetDataSizeLimitsForTestRequest {
            /** Maximum total buffer size. */
            maxTotalSize: integer;

            /** Maximum per-resource size. */
            maxResourceSize: integer;

        }

        export interface SetExtraHTTPHeadersRequest {
            /** Map with extra HTTP headers. */
            headers: Headers;

        }

        export interface SetRequestInterceptionRequest {
            /** Requests matching any of these patterns will be forwarded and wait for the corresponding
continueInterceptedRequest call. */
            patterns: RequestPattern[];

        }

        export interface SetUserAgentOverrideRequest {
            /** User agent to use. */
            userAgent: string;

        }

        export interface DataReceivedEvent {
            /** Request identifier. */
            requestId: RequestId;

            /** Timestamp. */
            timestamp: MonotonicTime;

            /** Data chunk length. */
            dataLength: integer;

            /** Actual bytes received (might be less than dataLength for compressed encodings). */
            encodedDataLength: integer;

        }

        export interface EventSourceMessageReceivedEvent {
            /** Request identifier. */
            requestId: RequestId;

            /** Timestamp. */
            timestamp: MonotonicTime;

            /** Message type. */
            eventName: string;

            /** Message identifier. */
            eventId: string;

            /** Message content. */
            data: string;

        }

        export interface LoadingFailedEvent {
            /** Request identifier. */
            requestId: RequestId;

            /** Timestamp. */
            timestamp: MonotonicTime;

            /** Resource type. */
            type: Page.ResourceType;

            /** User friendly error message. */
            errorText: string;

            /** True if loading was canceled. */
            canceled?: boolean;

            /** The reason why loading was blocked, if any. */
            blockedReason?: BlockedReason;

        }

        export interface LoadingFinishedEvent {
            /** Request identifier. */
            requestId: RequestId;

            /** Timestamp. */
            timestamp: MonotonicTime;

            /** Total number of bytes received for this request. */
            encodedDataLength: number;

            /** Set when response was blocked due to being cross-site document response. */
            blockedCrossSiteDocument?: boolean;

        }

        export interface RequestInterceptedEvent {
            /** Each request the page makes will have a unique id, however if any redirects are encountered
while processing that fetch, they will be reported with the same id as the original fetch.
Likewise if HTTP authentication is needed then the same fetch id will be used. */
            interceptionId: InterceptionId;

            request: Request;

            /** The id of the frame that initiated the request. */
            frameId: Page.FrameId;

            /** How the requested resource will be used. */
            resourceType: Page.ResourceType;

            /** Whether this is a navigation request, which can abort the navigation completely. */
            isNavigationRequest: boolean;

            /** Redirect location, only sent if a redirect was intercepted. */
            redirectUrl?: string;

            /** Details of the Authorization Challenge encountered. If this is set then
continueInterceptedRequest must contain an authChallengeResponse. */
            authChallenge?: AuthChallenge;

            /** Response error if intercepted at response stage or if redirect occurred while intercepting
request. */
            responseErrorReason?: ErrorReason;

            /** Response code if intercepted at response stage or if redirect occurred while intercepting
request or auth retry occurred. */
            responseStatusCode?: integer;

            /** Response headers if intercepted at the response stage or if redirect occurred while
intercepting request or auth retry occurred. */
            responseHeaders?: Headers;

        }

        export interface RequestServedFromCacheEvent {
            /** Request identifier. */
            requestId: RequestId;

        }

        export interface RequestWillBeSentEvent {
            /** Request identifier. */
            requestId: RequestId;

            /** Loader identifier. Empty string if the request is fetched from worker. */
            loaderId: LoaderId;

            /** URL of the document this request is loaded for. */
            documentURL: string;

            /** Request data. */
            request: Request;

            /** Timestamp. */
            timestamp: MonotonicTime;

            /** Timestamp. */
            wallTime: TimeSinceEpoch;

            /** Request initiator. */
            initiator: Initiator;

            /** Redirect response data. */
            redirectResponse?: Response;

            /** Type of this resource. */
            type?: Page.ResourceType;

            /** Frame identifier. */
            frameId?: Page.FrameId;

        }

        export interface ResourceChangedPriorityEvent {
            /** Request identifier. */
            requestId: RequestId;

            /** New priority */
            newPriority: ResourcePriority;

            /** Timestamp. */
            timestamp: MonotonicTime;

        }

        export interface ResponseReceivedEvent {
            /** Request identifier. */
            requestId: RequestId;

            /** Loader identifier. Empty string if the request is fetched from worker. */
            loaderId: LoaderId;

            /** Timestamp. */
            timestamp: MonotonicTime;

            /** Resource type. */
            type: Page.ResourceType;

            /** Response data. */
            response: Response;

            /** Frame identifier. */
            frameId?: Page.FrameId;

        }

        export interface WebSocketClosedEvent {
            /** Request identifier. */
            requestId: RequestId;

            /** Timestamp. */
            timestamp: MonotonicTime;

        }

        export interface WebSocketCreatedEvent {
            /** Request identifier. */
            requestId: RequestId;

            /** WebSocket request URL. */
            url: string;

            /** Request initiator. */
            initiator?: Initiator;

        }

        export interface WebSocketFrameErrorEvent {
            /** Request identifier. */
            requestId: RequestId;

            /** Timestamp. */
            timestamp: MonotonicTime;

            /** WebSocket frame error message. */
            errorMessage: string;

        }

        export interface WebSocketFrameReceivedEvent {
            /** Request identifier. */
            requestId: RequestId;

            /** Timestamp. */
            timestamp: MonotonicTime;

            /** WebSocket response data. */
            response: WebSocketFrame;

        }

        export interface WebSocketFrameSentEvent {
            /** Request identifier. */
            requestId: RequestId;

            /** Timestamp. */
            timestamp: MonotonicTime;

            /** WebSocket response data. */
            response: WebSocketFrame;

        }

        export interface WebSocketHandshakeResponseReceivedEvent {
            /** Request identifier. */
            requestId: RequestId;

            /** Timestamp. */
            timestamp: MonotonicTime;

            /** WebSocket response data. */
            response: WebSocketResponse;

        }

        export interface WebSocketWillSendHandshakeRequestEvent {
            /** Request identifier. */
            requestId: RequestId;

            /** Timestamp. */
            timestamp: MonotonicTime;

            /** UTC Timestamp. */
            wallTime: TimeSinceEpoch;

            /** WebSocket request data. */
            request: WebSocketRequest;

        }
    }

    export interface NetworkCommands {
        /** Tells whether clearing browser cache is supported. */
        canClearBrowserCache?: () => Promise<Network.CanClearBrowserCacheResponse>;

        /** Tells whether clearing browser cookies is supported. */
        canClearBrowserCookies?: () => Promise<Network.CanClearBrowserCookiesResponse>;

        /** Tells whether emulation of network conditions is supported. */
        canEmulateNetworkConditions?: () => Promise<Network.CanEmulateNetworkConditionsResponse>;

        /** Clears browser cache. */
        clearBrowserCache?: () => Promise<void>;

        /** Clears browser cookies. */
        clearBrowserCookies?: () => Promise<void>;

        /** Response to Network.requestIntercepted which either modifies the request to continue with any
modifications, or blocks it, or completes it with the provided response bytes. If a network
fetch occurs as a result which encounters a redirect an additional Network.requestIntercepted
event will be sent with the same InterceptionId. */
        continueInterceptedRequest?: (params: Network.ContinueInterceptedRequestRequest) => Promise<void>;

        /** Deletes browser cookies with matching name and url or domain/path pair. */
        deleteCookies?: (params: Network.DeleteCookiesRequest) => Promise<void>;

        /** Disables network tracking, prevents network events from being sent to the client. */
        disable?: () => Promise<void>;

        /** Activates emulation of network conditions. */
        emulateNetworkConditions?: (params: Network.EmulateNetworkConditionsRequest) => Promise<void>;

        /** Enables network tracking, network events will now be delivered to the client. */
        enable?: (params: Network.EnableRequest) => Promise<void>;

        /** Returns all browser cookies. Depending on the backend support, will return detailed cookie
information in the `cookies` field. */
        getAllCookies?: () => Promise<Network.GetAllCookiesResponse>;

        /** Returns the DER-encoded certificate. */
        getCertificate?: (params: Network.GetCertificateRequest) => Promise<Network.GetCertificateResponse>;

        /** Returns all browser cookies for the current URL. Depending on the backend support, will return
detailed cookie information in the `cookies` field. */
        getCookies?: (params: Network.GetCookiesRequest) => Promise<Network.GetCookiesResponse>;

        /** Returns content served for the given request. */
        getResponseBody?: (params: Network.GetResponseBodyRequest) => Promise<Network.GetResponseBodyResponse>;

        /** Returns post data sent with the request. Returns an error when no data was sent with the request. */
        getRequestPostData?: (params: Network.GetRequestPostDataRequest) => Promise<Network.GetRequestPostDataResponse>;

        /** Returns content served for the given currently intercepted request. */
        getResponseBodyForInterception?: (params: Network.GetResponseBodyForInterceptionRequest) => Promise<Network.GetResponseBodyForInterceptionResponse>;

        /** This method sends a new XMLHttpRequest which is identical to the original one. The following
parameters should be identical: method, url, async, request body, extra headers, withCredentials
attribute, user, password. */
        replayXHR?: (params: Network.ReplayXHRRequest) => Promise<void>;

        /** Searches for given string in response content. */
        searchInResponseBody?: (params: Network.SearchInResponseBodyRequest) => Promise<Network.SearchInResponseBodyResponse>;

        /** Blocks URLs from loading. */
        setBlockedURLs?: (params: Network.SetBlockedURLsRequest) => Promise<void>;

        /** Toggles ignoring of service worker for each request. */
        setBypassServiceWorker?: (params: Network.SetBypassServiceWorkerRequest) => Promise<void>;

        /** Toggles ignoring cache for each request. If `true`, cache will not be used. */
        setCacheDisabled?: (params: Network.SetCacheDisabledRequest) => Promise<void>;

        /** Sets a cookie with the given cookie data; may overwrite equivalent cookies if they exist. */
        setCookie?: (params: Network.SetCookieRequest) => Promise<Network.SetCookieResponse>;

        /** Sets given cookies. */
        setCookies?: (params: Network.SetCookiesRequest) => Promise<void>;

        /** For testing. */
        setDataSizeLimitsForTest?: (params: Network.SetDataSizeLimitsForTestRequest) => Promise<void>;

        /** Specifies whether to always send extra HTTP headers with the requests from this page. */
        setExtraHTTPHeaders?: (params: Network.SetExtraHTTPHeadersRequest) => Promise<void>;

        /** Sets the requests to intercept that match a the provided patterns and optionally resource types. */
        setRequestInterception?: (params: Network.SetRequestInterceptionRequest) => Promise<void>;

        /** Allows overriding user agent with the given string. */
        setUserAgentOverride?: (params: Network.SetUserAgentOverrideRequest) => Promise<void>;

    }

    export interface NetworkClient extends NetworkCommands {
        /** Fired when data chunk was received over the network. */
        onDataReceived(handler: (params: Network.DataReceivedEvent) => void): void;

        /** Fired when EventSource message is received. */
        onEventSourceMessageReceived(handler: (params: Network.EventSourceMessageReceivedEvent) => void): void;

        /** Fired when HTTP request has failed to load. */
        onLoadingFailed(handler: (params: Network.LoadingFailedEvent) => void): void;

        /** Fired when HTTP request has finished loading. */
        onLoadingFinished(handler: (params: Network.LoadingFinishedEvent) => void): void;

        /** Details of an intercepted HTTP request, which must be either allowed, blocked, modified or
mocked. */
        onRequestIntercepted(handler: (params: Network.RequestInterceptedEvent) => void): void;

        /** Fired if request ended up loading from cache. */
        onRequestServedFromCache(handler: (params: Network.RequestServedFromCacheEvent) => void): void;

        /** Fired when page is about to send HTTP request. */
        onRequestWillBeSent(handler: (params: Network.RequestWillBeSentEvent) => void): void;

        /** Fired when resource loading priority is changed */
        onResourceChangedPriority(handler: (params: Network.ResourceChangedPriorityEvent) => void): void;

        /** Fired when HTTP response is available. */
        onResponseReceived(handler: (params: Network.ResponseReceivedEvent) => void): void;

        /** Fired when WebSocket is closed. */
        onWebSocketClosed(handler: (params: Network.WebSocketClosedEvent) => void): void;

        /** Fired upon WebSocket creation. */
        onWebSocketCreated(handler: (params: Network.WebSocketCreatedEvent) => void): void;

        /** Fired when WebSocket frame error occurs. */
        onWebSocketFrameError(handler: (params: Network.WebSocketFrameErrorEvent) => void): void;

        /** Fired when WebSocket frame is received. */
        onWebSocketFrameReceived(handler: (params: Network.WebSocketFrameReceivedEvent) => void): void;

        /** Fired when WebSocket frame is sent. */
        onWebSocketFrameSent(handler: (params: Network.WebSocketFrameSentEvent) => void): void;

        /** Fired when WebSocket handshake response becomes available. */
        onWebSocketHandshakeResponseReceived(handler: (params: Network.WebSocketHandshakeResponseReceivedEvent) => void): void;

        /** Fired when WebSocket is about to initiate handshake. */
        onWebSocketWillSendHandshakeRequest(handler: (params: Network.WebSocketWillSendHandshakeRequestEvent) => void): void;

    }

    export interface NetworkServer {
        /** Fired when data chunk was received over the network. */
        emitDataReceived(params: Network.DataReceivedEvent): void;

        /** Fired when EventSource message is received. */
        emitEventSourceMessageReceived(params: Network.EventSourceMessageReceivedEvent): void;

        /** Fired when HTTP request has failed to load. */
        emitLoadingFailed(params: Network.LoadingFailedEvent): void;

        /** Fired when HTTP request has finished loading. */
        emitLoadingFinished(params: Network.LoadingFinishedEvent): void;

        /** Details of an intercepted HTTP request, which must be either allowed, blocked, modified or
mocked. */
        emitRequestIntercepted(params: Network.RequestInterceptedEvent): void;

        /** Fired if request ended up loading from cache. */
        emitRequestServedFromCache(params: Network.RequestServedFromCacheEvent): void;

        /** Fired when page is about to send HTTP request. */
        emitRequestWillBeSent(params: Network.RequestWillBeSentEvent): void;

        /** Fired when resource loading priority is changed */
        emitResourceChangedPriority(params: Network.ResourceChangedPriorityEvent): void;

        /** Fired when HTTP response is available. */
        emitResponseReceived(params: Network.ResponseReceivedEvent): void;

        /** Fired when WebSocket is closed. */
        emitWebSocketClosed(params: Network.WebSocketClosedEvent): void;

        /** Fired upon WebSocket creation. */
        emitWebSocketCreated(params: Network.WebSocketCreatedEvent): void;

        /** Fired when WebSocket frame error occurs. */
        emitWebSocketFrameError(params: Network.WebSocketFrameErrorEvent): void;

        /** Fired when WebSocket frame is received. */
        emitWebSocketFrameReceived(params: Network.WebSocketFrameReceivedEvent): void;

        /** Fired when WebSocket frame is sent. */
        emitWebSocketFrameSent(params: Network.WebSocketFrameSentEvent): void;

        /** Fired when WebSocket handshake response becomes available. */
        emitWebSocketHandshakeResponseReceived(params: Network.WebSocketHandshakeResponseReceivedEvent): void;

        /** Fired when WebSocket is about to initiate handshake. */
        emitWebSocketWillSendHandshakeRequest(params: Network.WebSocketWillSendHandshakeRequestEvent): void;

        expose(domain: NetworkCommands): void;

    }

    /** This domain provides various functionality related to drawing atop the inspected page. */
    export module Overlay {

        /** Configuration data for the highlighting of page elements. */
        export interface HighlightConfig {
            /** Whether the node info tooltip should be shown (default: false). */
            showInfo?: boolean;

            /** Whether the rulers should be shown (default: false). */
            showRulers?: boolean;

            /** Whether the extension lines from node to the rulers should be shown (default: false). */
            showExtensionLines?: boolean;

            displayAsMaterial?: boolean;

            /** The content box highlight fill color (default: transparent). */
            contentColor?: DOM.RGBA;

            /** The padding highlight fill color (default: transparent). */
            paddingColor?: DOM.RGBA;

            /** The border highlight fill color (default: transparent). */
            borderColor?: DOM.RGBA;

            /** The margin highlight fill color (default: transparent). */
            marginColor?: DOM.RGBA;

            /** The event target element highlight fill color (default: transparent). */
            eventTargetColor?: DOM.RGBA;

            /** The shape outside fill color (default: transparent). */
            shapeColor?: DOM.RGBA;

            /** The shape margin fill color (default: transparent). */
            shapeMarginColor?: DOM.RGBA;

            /** Selectors to highlight relevant nodes. */
            selectorList?: string;

            /** The grid layout color (default: transparent). */
            cssGridColor?: DOM.RGBA;

        }

        export type InspectMode = ('searchForNode' | 'searchForUAShadowDOM' | 'none');

        export interface GetHighlightObjectForTestRequest {
            /** Id of the node to get highlight object for. */
            nodeId: DOM.NodeId;

        }

        export interface GetHighlightObjectForTestResponse {
            /** Highlight data for the node. */
            highlight: any;

        }

        export interface HighlightFrameRequest {
            /** Identifier of the frame to highlight. */
            frameId: Page.FrameId;

            /** The content box highlight fill color (default: transparent). */
            contentColor?: DOM.RGBA;

            /** The content box highlight outline color (default: transparent). */
            contentOutlineColor?: DOM.RGBA;

        }

        export interface HighlightNodeRequest {
            /** A descriptor for the highlight appearance. */
            highlightConfig: HighlightConfig;

            /** Identifier of the node to highlight. */
            nodeId?: DOM.NodeId;

            /** Identifier of the backend node to highlight. */
            backendNodeId?: DOM.BackendNodeId;

            /** JavaScript object id of the node to be highlighted. */
            objectId?: Runtime.RemoteObjectId;

        }

        export interface HighlightQuadRequest {
            /** Quad to highlight */
            quad: DOM.Quad;

            /** The highlight fill color (default: transparent). */
            color?: DOM.RGBA;

            /** The highlight outline color (default: transparent). */
            outlineColor?: DOM.RGBA;

        }

        export interface HighlightRectRequest {
            /** X coordinate */
            x: integer;

            /** Y coordinate */
            y: integer;

            /** Rectangle width */
            width: integer;

            /** Rectangle height */
            height: integer;

            /** The highlight fill color (default: transparent). */
            color?: DOM.RGBA;

            /** The highlight outline color (default: transparent). */
            outlineColor?: DOM.RGBA;

        }

        export interface SetInspectModeRequest {
            /** Set an inspection mode. */
            mode: InspectMode;

            /** A descriptor for the highlight appearance of hovered-over nodes. May be omitted if `enabled
== false`. */
            highlightConfig?: HighlightConfig;

        }

        export interface SetPausedInDebuggerMessageRequest {
            /** The message to display, also triggers resume and step over controls. */
            message?: string;

        }

        export interface SetShowDebugBordersRequest {
            /** True for showing debug borders */
            show: boolean;

        }

        export interface SetShowFPSCounterRequest {
            /** True for showing the FPS counter */
            show: boolean;

        }

        export interface SetShowPaintRectsRequest {
            /** True for showing paint rectangles */
            result: boolean;

        }

        export interface SetShowScrollBottleneckRectsRequest {
            /** True for showing scroll bottleneck rects */
            show: boolean;

        }

        export interface SetShowViewportSizeOnResizeRequest {
            /** Whether to paint size or not. */
            show: boolean;

        }

        export interface SetSuspendedRequest {
            /** Whether overlay should be suspended and not consume any resources until resumed. */
            suspended: boolean;

        }

        export interface InspectNodeRequestedEvent {
            /** Id of the node to inspect. */
            backendNodeId: DOM.BackendNodeId;

        }

        export interface NodeHighlightRequestedEvent {
            nodeId: DOM.NodeId;

        }

        export interface ScreenshotRequestedEvent {
            /** Viewport to capture, in CSS. */
            viewport: Page.Viewport;

        }
    }

    export interface OverlayCommands {
        /** Disables domain notifications. */
        disable?: () => Promise<void>;

        /** Enables domain notifications. */
        enable?: () => Promise<void>;

        /** For testing. */
        getHighlightObjectForTest?: (params: Overlay.GetHighlightObjectForTestRequest) => Promise<Overlay.GetHighlightObjectForTestResponse>;

        /** Hides any highlight. */
        hideHighlight?: () => Promise<void>;

        /** Highlights owner element of the frame with given id. */
        highlightFrame?: (params: Overlay.HighlightFrameRequest) => Promise<void>;

        /** Highlights DOM node with given id or with the given JavaScript object wrapper. Either nodeId or
objectId must be specified. */
        highlightNode?: (params: Overlay.HighlightNodeRequest) => Promise<void>;

        /** Highlights given quad. Coordinates are absolute with respect to the main frame viewport. */
        highlightQuad?: (params: Overlay.HighlightQuadRequest) => Promise<void>;

        /** Highlights given rectangle. Coordinates are absolute with respect to the main frame viewport. */
        highlightRect?: (params: Overlay.HighlightRectRequest) => Promise<void>;

        /** Enters the 'inspect' mode. In this mode, elements that user is hovering over are highlighted.
Backend then generates 'inspectNodeRequested' event upon element selection. */
        setInspectMode?: (params: Overlay.SetInspectModeRequest) => Promise<void>;

        setPausedInDebuggerMessage?: (params: Overlay.SetPausedInDebuggerMessageRequest) => Promise<void>;

        /** Requests that backend shows debug borders on layers */
        setShowDebugBorders?: (params: Overlay.SetShowDebugBordersRequest) => Promise<void>;

        /** Requests that backend shows the FPS counter */
        setShowFPSCounter?: (params: Overlay.SetShowFPSCounterRequest) => Promise<void>;

        /** Requests that backend shows paint rectangles */
        setShowPaintRects?: (params: Overlay.SetShowPaintRectsRequest) => Promise<void>;

        /** Requests that backend shows scroll bottleneck rects */
        setShowScrollBottleneckRects?: (params: Overlay.SetShowScrollBottleneckRectsRequest) => Promise<void>;

        /** Paints viewport size upon main frame resize. */
        setShowViewportSizeOnResize?: (params: Overlay.SetShowViewportSizeOnResizeRequest) => Promise<void>;

        setSuspended?: (params: Overlay.SetSuspendedRequest) => Promise<void>;

    }

    export interface OverlayClient extends OverlayCommands {
        /** Fired when the node should be inspected. This happens after call to `setInspectMode` or when
user manually inspects an element. */
        onInspectNodeRequested(handler: (params: Overlay.InspectNodeRequestedEvent) => void): void;

        /** Fired when the node should be highlighted. This happens after call to `setInspectMode`. */
        onNodeHighlightRequested(handler: (params: Overlay.NodeHighlightRequestedEvent) => void): void;

        /** Fired when user asks to capture screenshot of some area on the page. */
        onScreenshotRequested(handler: (params: Overlay.ScreenshotRequestedEvent) => void): void;

    }

    export interface OverlayServer {
        /** Fired when the node should be inspected. This happens after call to `setInspectMode` or when
user manually inspects an element. */
        emitInspectNodeRequested(params: Overlay.InspectNodeRequestedEvent): void;

        /** Fired when the node should be highlighted. This happens after call to `setInspectMode`. */
        emitNodeHighlightRequested(params: Overlay.NodeHighlightRequestedEvent): void;

        /** Fired when user asks to capture screenshot of some area on the page. */
        emitScreenshotRequested(params: Overlay.ScreenshotRequestedEvent): void;

        expose(domain: OverlayCommands): void;

    }

    /** Actions and events related to the inspected page belong to the page domain. */
    export module Page {

        /** Resource type as it was perceived by the rendering engine. */
        export type ResourceType = ('Document' | 'Stylesheet' | 'Image' | 'Media' | 'Font' | 'Script' | 'TextTrack' | 'XHR' | 'Fetch' | 'EventSource' | 'WebSocket' | 'Manifest' | 'Other');

        /** Unique frame identifier. */
        export type FrameId = string;

        /** Information about the Frame on the page. */
        export interface Frame {
            /** Frame unique identifier. */
            id: string;

            /** Parent frame identifier. */
            parentId?: string;

            /** Identifier of the loader associated with this frame. */
            loaderId: Network.LoaderId;

            /** Frame's name as specified in the tag. */
            name?: string;

            /** Frame document's URL. */
            url: string;

            /** Frame document's security origin. */
            securityOrigin: string;

            /** Frame document's mimeType as determined by the browser. */
            mimeType: string;

            /** If the frame failed to load, this contains the URL that could not be loaded. */
            unreachableUrl?: string;

        }

        /** Information about the Resource on the page. */
        export interface FrameResource {
            /** Resource URL. */
            url: string;

            /** Type of this resource. */
            type: ResourceType;

            /** Resource mimeType as determined by the browser. */
            mimeType: string;

            /** last-modified timestamp as reported by server. */
            lastModified?: Network.TimeSinceEpoch;

            /** Resource content size. */
            contentSize?: number;

            /** True if the resource failed to load. */
            failed?: boolean;

            /** True if the resource was canceled during loading. */
            canceled?: boolean;

        }

        /** Information about the Frame hierarchy along with their cached resources. */
        export interface FrameResourceTree {
            /** Frame information for this tree item. */
            frame: Frame;

            /** Child frames. */
            childFrames?: FrameResourceTree[];

            /** Information about frame resources. */
            resources: FrameResource[];

        }

        /** Information about the Frame hierarchy. */
        export interface FrameTree {
            /** Frame information for this tree item. */
            frame: Frame;

            /** Child frames. */
            childFrames?: FrameTree[];

        }

        /** Unique script identifier. */
        export type ScriptIdentifier = string;

        /** Transition type. */
        export type TransitionType = ('link' | 'typed' | 'auto_bookmark' | 'auto_subframe' | 'manual_subframe' | 'generated' | 'auto_toplevel' | 'form_submit' | 'reload' | 'keyword' | 'keyword_generated' | 'other');

        /** Navigation history entry. */
        export interface NavigationEntry {
            /** Unique id of the navigation history entry. */
            id: integer;

            /** URL of the navigation history entry. */
            url: string;

            /** URL that the user typed in the url bar. */
            userTypedURL: string;

            /** Title of the navigation history entry. */
            title: string;

            /** Transition type. */
            transitionType: TransitionType;

        }

        /** Screencast frame metadata. */
        export interface ScreencastFrameMetadata {
            /** Top offset in DIP. */
            offsetTop: number;

            /** Page scale factor. */
            pageScaleFactor: number;

            /** Device screen width in DIP. */
            deviceWidth: number;

            /** Device screen height in DIP. */
            deviceHeight: number;

            /** Position of horizontal scroll in CSS pixels. */
            scrollOffsetX: number;

            /** Position of vertical scroll in CSS pixels. */
            scrollOffsetY: number;

            /** Frame swap timestamp. */
            timestamp?: Network.TimeSinceEpoch;

        }

        /** Javascript dialog type. */
        export type DialogType = ('alert' | 'confirm' | 'prompt' | 'beforeunload');

        /** Error while paring app manifest. */
        export interface AppManifestError {
            /** Error message. */
            message: string;

            /** If criticial, this is a non-recoverable parse error. */
            critical: integer;

            /** Error line. */
            line: integer;

            /** Error column. */
            column: integer;

        }

        /** Layout viewport position and dimensions. */
        export interface LayoutViewport {
            /** Horizontal offset relative to the document (CSS pixels). */
            pageX: integer;

            /** Vertical offset relative to the document (CSS pixels). */
            pageY: integer;

            /** Width (CSS pixels), excludes scrollbar if present. */
            clientWidth: integer;

            /** Height (CSS pixels), excludes scrollbar if present. */
            clientHeight: integer;

        }

        /** Visual viewport position, dimensions, and scale. */
        export interface VisualViewport {
            /** Horizontal offset relative to the layout viewport (CSS pixels). */
            offsetX: number;

            /** Vertical offset relative to the layout viewport (CSS pixels). */
            offsetY: number;

            /** Horizontal offset relative to the document (CSS pixels). */
            pageX: number;

            /** Vertical offset relative to the document (CSS pixels). */
            pageY: number;

            /** Width (CSS pixels), excludes scrollbar if present. */
            clientWidth: number;

            /** Height (CSS pixels), excludes scrollbar if present. */
            clientHeight: number;

            /** Scale relative to the ideal viewport (size at width=device-width). */
            scale: number;

        }

        /** Viewport for capturing screenshot. */
        export interface Viewport {
            /** X offset in CSS pixels. */
            x: number;

            /** Y offset in CSS pixels */
            y: number;

            /** Rectangle width in CSS pixels */
            width: number;

            /** Rectangle height in CSS pixels */
            height: number;

            /** Page scale factor. */
            scale: number;

        }

        export interface AddScriptToEvaluateOnLoadRequest {
            scriptSource: string;

        }

        export interface AddScriptToEvaluateOnLoadResponse {
            /** Identifier of the added script. */
            identifier: ScriptIdentifier;

        }

        export interface AddScriptToEvaluateOnNewDocumentRequest {
            source: string;

        }

        export interface AddScriptToEvaluateOnNewDocumentResponse {
            /** Identifier of the added script. */
            identifier: ScriptIdentifier;

        }

        export interface CaptureScreenshotRequest {
            /** Image compression format (defaults to png). */
            format?: ('jpeg' | 'png');

            /** Compression quality from range [0..100] (jpeg only). */
            quality?: integer;

            /** Capture the screenshot of a given region only. */
            clip?: Viewport;

            /** Capture the screenshot from the surface, rather than the view. Defaults to true. */
            fromSurface?: boolean;

        }

        export interface CaptureScreenshotResponse {
            /** Base64-encoded image data. */
            data: string;

        }

        export interface CreateIsolatedWorldRequest {
            /** Id of the frame in which the isolated world should be created. */
            frameId: FrameId;

            /** An optional name which is reported in the Execution Context. */
            worldName?: string;

            /** Whether or not universal access should be granted to the isolated world. This is a powerful
option, use with caution. */
            grantUniveralAccess?: boolean;

        }

        export interface CreateIsolatedWorldResponse {
            /** Execution context of the isolated world. */
            executionContextId: Runtime.ExecutionContextId;

        }

        export interface DeleteCookieRequest {
            /** Name of the cookie to remove. */
            cookieName: string;

            /** URL to match cooke domain and path. */
            url: string;

        }

        export interface GetAppManifestResponse {
            /** Manifest location. */
            url: string;

            errors: AppManifestError[];

            /** Manifest content. */
            data?: string;

        }

        export interface GetCookiesResponse {
            /** Array of cookie objects. */
            cookies: Network.Cookie[];

        }

        export interface GetFrameTreeResponse {
            /** Present frame tree structure. */
            frameTree: FrameTree;

        }

        export interface GetLayoutMetricsResponse {
            /** Metrics relating to the layout viewport. */
            layoutViewport: LayoutViewport;

            /** Metrics relating to the visual viewport. */
            visualViewport: VisualViewport;

            /** Size of scrollable area. */
            contentSize: DOM.Rect;

        }

        export interface GetNavigationHistoryResponse {
            /** Index of the current navigation history entry. */
            currentIndex: integer;

            /** Array of navigation history entries. */
            entries: NavigationEntry[];

        }

        export interface GetResourceContentRequest {
            /** Frame id to get resource for. */
            frameId: FrameId;

            /** URL of the resource to get content for. */
            url: string;

        }

        export interface GetResourceContentResponse {
            /** Resource content. */
            content: string;

            /** True, if content was served as base64. */
            base64Encoded: boolean;

        }

        export interface GetResourceTreeResponse {
            /** Present frame / resource tree structure. */
            frameTree: FrameResourceTree;

        }

        export interface HandleJavaScriptDialogRequest {
            /** Whether to accept or dismiss the dialog. */
            accept: boolean;

            /** The text to enter into the dialog prompt before accepting. Used only if this is a prompt
dialog. */
            promptText?: string;

        }

        export interface NavigateRequest {
            /** URL to navigate the page to. */
            url: string;

            /** Referrer URL. */
            referrer?: string;

            /** Intended transition type. */
            transitionType?: TransitionType;

        }

        export interface NavigateResponse {
            /** Frame id that has navigated (or failed to navigate) */
            frameId: FrameId;

            /** Loader identifier. */
            loaderId?: Network.LoaderId;

            /** User friendly error message, present if and only if navigation has failed. */
            errorText?: string;

        }

        export interface NavigateToHistoryEntryRequest {
            /** Unique id of the entry to navigate to. */
            entryId: integer;

        }

        export interface PrintToPDFRequest {
            /** Paper orientation. Defaults to false. */
            landscape?: boolean;

            /** Display header and footer. Defaults to false. */
            displayHeaderFooter?: boolean;

            /** Print background graphics. Defaults to false. */
            printBackground?: boolean;

            /** Scale of the webpage rendering. Defaults to 1. */
            scale?: number;

            /** Paper width in inches. Defaults to 8.5 inches. */
            paperWidth?: number;

            /** Paper height in inches. Defaults to 11 inches. */
            paperHeight?: number;

            /** Top margin in inches. Defaults to 1cm (~0.4 inches). */
            marginTop?: number;

            /** Bottom margin in inches. Defaults to 1cm (~0.4 inches). */
            marginBottom?: number;

            /** Left margin in inches. Defaults to 1cm (~0.4 inches). */
            marginLeft?: number;

            /** Right margin in inches. Defaults to 1cm (~0.4 inches). */
            marginRight?: number;

            /** Paper ranges to print, e.g., '1-5, 8, 11-13'. Defaults to the empty string, which means
print all pages. */
            pageRanges?: string;

            /** Whether to silently ignore invalid but successfully parsed page ranges, such as '3-2'.
Defaults to false. */
            ignoreInvalidPageRanges?: boolean;

            /** HTML template for the print header. Should be valid HTML markup with following
classes used to inject printing values into them:
- date - formatted print date
- title - document title
- url - document location
- pageNumber - current page number
- totalPages - total pages in the document

For example, <span class=title></span> would generate span containing the title. */
            headerTemplate?: string;

            /** HTML template for the print footer. Should use the same format as the `headerTemplate`. */
            footerTemplate?: string;

        }

        export interface PrintToPDFResponse {
            /** Base64-encoded pdf data. */
            data: string;

        }

        export interface ReloadRequest {
            /** If true, browser cache is ignored (as if the user pressed Shift+refresh). */
            ignoreCache?: boolean;

            /** If set, the script will be injected into all frames of the inspected page after reload.
Argument will be ignored if reloading dataURL origin. */
            scriptToEvaluateOnLoad?: string;

        }

        export interface RemoveScriptToEvaluateOnLoadRequest {
            identifier: ScriptIdentifier;

        }

        export interface RemoveScriptToEvaluateOnNewDocumentRequest {
            identifier: ScriptIdentifier;

        }

        export interface ScreencastFrameAckRequest {
            /** Frame number. */
            sessionId: integer;

        }

        export interface SearchInResourceRequest {
            /** Frame id for resource to search in. */
            frameId: FrameId;

            /** URL of the resource to search in. */
            url: string;

            /** String to search for. */
            query: string;

            /** If true, search is case sensitive. */
            caseSensitive?: boolean;

            /** If true, treats string parameter as regex. */
            isRegex?: boolean;

        }

        export interface SearchInResourceResponse {
            /** List of search matches. */
            result: Debugger.SearchMatch[];

        }

        export interface SetAdBlockingEnabledRequest {
            /** Whether to block ads. */
            enabled: boolean;

        }

        export interface SetDeviceMetricsOverrideRequest {
            /** Overriding width value in pixels (minimum 0, maximum 10000000). 0 disables the override. */
            width: integer;

            /** Overriding height value in pixels (minimum 0, maximum 10000000). 0 disables the override. */
            height: integer;

            /** Overriding device scale factor value. 0 disables the override. */
            deviceScaleFactor: number;

            /** Whether to emulate mobile device. This includes viewport meta tag, overlay scrollbars, text
autosizing and more. */
            mobile: boolean;

            /** Scale to apply to resulting view image. */
            scale?: number;

            /** Overriding screen width value in pixels (minimum 0, maximum 10000000). */
            screenWidth?: integer;

            /** Overriding screen height value in pixels (minimum 0, maximum 10000000). */
            screenHeight?: integer;

            /** Overriding view X position on screen in pixels (minimum 0, maximum 10000000). */
            positionX?: integer;

            /** Overriding view Y position on screen in pixels (minimum 0, maximum 10000000). */
            positionY?: integer;

            /** Do not set visible view size, rely upon explicit setVisibleSize call. */
            dontSetVisibleSize?: boolean;

            /** Screen orientation override. */
            screenOrientation?: Emulation.ScreenOrientation;

            /** The viewport dimensions and scale. If not set, the override is cleared. */
            viewport?: Viewport;

        }

        export interface SetDeviceOrientationOverrideRequest {
            /** Mock alpha */
            alpha: number;

            /** Mock beta */
            beta: number;

            /** Mock gamma */
            gamma: number;

        }

        export interface SetDocumentContentRequest {
            /** Frame id to set HTML for. */
            frameId: FrameId;

            /** HTML content to set. */
            html: string;

        }

        export interface SetDownloadBehaviorRequest {
            /** Whether to allow all or deny all download requests, or use default Chrome behavior if
available (otherwise deny). */
            behavior: ('deny' | 'allow' | 'default');

            /** The default path to save downloaded files to. This is requred if behavior is set to 'allow' */
            downloadPath?: string;

        }

        export interface SetGeolocationOverrideRequest {
            /** Mock latitude */
            latitude?: number;

            /** Mock longitude */
            longitude?: number;

            /** Mock accuracy */
            accuracy?: number;

        }

        export interface SetLifecycleEventsEnabledRequest {
            /** If true, starts emitting lifecycle events. */
            enabled: boolean;

        }

        export interface SetTouchEmulationEnabledRequest {
            /** Whether the touch event emulation should be enabled. */
            enabled: boolean;

            /** Touch/gesture events configuration. Default: current platform. */
            configuration?: ('mobile' | 'desktop');

        }

        export interface StartScreencastRequest {
            /** Image compression format. */
            format?: ('jpeg' | 'png');

            /** Compression quality from range [0..100]. */
            quality?: integer;

            /** Maximum screenshot width. */
            maxWidth?: integer;

            /** Maximum screenshot height. */
            maxHeight?: integer;

            /** Send every n-th frame. */
            everyNthFrame?: integer;

        }

        export interface DomContentEventFiredEvent {
            timestamp: Network.MonotonicTime;

        }

        export interface FrameAttachedEvent {
            /** Id of the frame that has been attached. */
            frameId: FrameId;

            /** Parent frame identifier. */
            parentFrameId: FrameId;

            /** JavaScript stack trace of when frame was attached, only set if frame initiated from script. */
            stack?: Runtime.StackTrace;

        }

        export interface FrameClearedScheduledNavigationEvent {
            /** Id of the frame that has cleared its scheduled navigation. */
            frameId: FrameId;

        }

        export interface FrameDetachedEvent {
            /** Id of the frame that has been detached. */
            frameId: FrameId;

        }

        export interface FrameNavigatedEvent {
            /** Frame object. */
            frame: Frame;

        }

        export interface FrameScheduledNavigationEvent {
            /** Id of the frame that has scheduled a navigation. */
            frameId: FrameId;

            /** Delay (in seconds) until the navigation is scheduled to begin. The navigation is not
guaranteed to start. */
            delay: number;

            /** The reason for the navigation. */
            reason: ('formSubmissionGet' | 'formSubmissionPost' | 'httpHeaderRefresh' | 'scriptInitiated' | 'metaTagRefresh' | 'pageBlockInterstitial' | 'reload');

            /** The destination URL for the scheduled navigation. */
            url: string;

        }

        export interface FrameStartedLoadingEvent {
            /** Id of the frame that has started loading. */
            frameId: FrameId;

        }

        export interface FrameStoppedLoadingEvent {
            /** Id of the frame that has stopped loading. */
            frameId: FrameId;

        }

        export interface JavascriptDialogClosedEvent {
            /** Whether dialog was confirmed. */
            result: boolean;

            /** User input in case of prompt. */
            userInput: string;

        }

        export interface JavascriptDialogOpeningEvent {
            /** Frame url. */
            url: string;

            /** Message that will be displayed by the dialog. */
            message: string;

            /** Dialog type. */
            type: DialogType;

            /** Default dialog prompt. */
            defaultPrompt?: string;

        }

        export interface LifecycleEventEvent {
            /** Id of the frame. */
            frameId: FrameId;

            /** Loader identifier. Empty string if the request is fetched from worker. */
            loaderId: Network.LoaderId;

            name: string;

            timestamp: Network.MonotonicTime;

        }

        export interface LoadEventFiredEvent {
            timestamp: Network.MonotonicTime;

        }

        export interface ScreencastFrameEvent {
            /** Base64-encoded compressed image. */
            data: string;

            /** Screencast frame metadata. */
            metadata: ScreencastFrameMetadata;

            /** Frame number. */
            sessionId: integer;

        }

        export interface ScreencastVisibilityChangedEvent {
            /** True if the page is visible. */
            visible: boolean;

        }

        export interface WindowOpenEvent {
            /** The URL for the new window. */
            url: string;

            /** Window name. */
            windowName: string;

            /** An array of enabled window features. */
            windowFeatures: string[];

            /** Whether or not it was triggered by user gesture. */
            userGesture: boolean;

        }
    }

    export interface PageCommands {
        /** Deprecated, please use addScriptToEvaluateOnNewDocument instead. */
        addScriptToEvaluateOnLoad?: (params: Page.AddScriptToEvaluateOnLoadRequest) => Promise<Page.AddScriptToEvaluateOnLoadResponse>;

        /** Evaluates given script in every frame upon creation (before loading frame's scripts). */
        addScriptToEvaluateOnNewDocument?: (params: Page.AddScriptToEvaluateOnNewDocumentRequest) => Promise<Page.AddScriptToEvaluateOnNewDocumentResponse>;

        /** Brings page to front (activates tab). */
        bringToFront?: () => Promise<void>;

        /** Capture page screenshot. */
        captureScreenshot?: (params: Page.CaptureScreenshotRequest) => Promise<Page.CaptureScreenshotResponse>;

        /** Clears the overriden device metrics. */
        clearDeviceMetricsOverride?: () => Promise<void>;

        /** Clears the overridden Device Orientation. */
        clearDeviceOrientationOverride?: () => Promise<void>;

        /** Clears the overriden Geolocation Position and Error. */
        clearGeolocationOverride?: () => Promise<void>;

        /** Creates an isolated world for the given frame. */
        createIsolatedWorld?: (params: Page.CreateIsolatedWorldRequest) => Promise<Page.CreateIsolatedWorldResponse>;

        /** Deletes browser cookie with given name, domain and path. */
        deleteCookie?: (params: Page.DeleteCookieRequest) => Promise<void>;

        /** Disables page domain notifications. */
        disable?: () => Promise<void>;

        /** Enables page domain notifications. */
        enable?: () => Promise<void>;

        getAppManifest?: () => Promise<Page.GetAppManifestResponse>;

        /** Returns all browser cookies. Depending on the backend support, will return detailed cookie
information in the `cookies` field. */
        getCookies?: () => Promise<Page.GetCookiesResponse>;

        /** Returns present frame tree structure. */
        getFrameTree?: () => Promise<Page.GetFrameTreeResponse>;

        /** Returns metrics relating to the layouting of the page, such as viewport bounds/scale. */
        getLayoutMetrics?: () => Promise<Page.GetLayoutMetricsResponse>;

        /** Returns navigation history for the current page. */
        getNavigationHistory?: () => Promise<Page.GetNavigationHistoryResponse>;

        /** Returns content of the given resource. */
        getResourceContent?: (params: Page.GetResourceContentRequest) => Promise<Page.GetResourceContentResponse>;

        /** Returns present frame / resource tree structure. */
        getResourceTree?: () => Promise<Page.GetResourceTreeResponse>;

        /** Accepts or dismisses a JavaScript initiated dialog (alert, confirm, prompt, or onbeforeunload). */
        handleJavaScriptDialog?: (params: Page.HandleJavaScriptDialogRequest) => Promise<void>;

        /** Navigates current page to the given URL. */
        navigate?: (params: Page.NavigateRequest) => Promise<Page.NavigateResponse>;

        /** Navigates current page to the given history entry. */
        navigateToHistoryEntry?: (params: Page.NavigateToHistoryEntryRequest) => Promise<void>;

        /** Print page as PDF. */
        printToPDF?: (params: Page.PrintToPDFRequest) => Promise<Page.PrintToPDFResponse>;

        /** Reloads given page optionally ignoring the cache. */
        reload?: (params: Page.ReloadRequest) => Promise<void>;

        /** Deprecated, please use removeScriptToEvaluateOnNewDocument instead. */
        removeScriptToEvaluateOnLoad?: (params: Page.RemoveScriptToEvaluateOnLoadRequest) => Promise<void>;

        /** Removes given script from the list. */
        removeScriptToEvaluateOnNewDocument?: (params: Page.RemoveScriptToEvaluateOnNewDocumentRequest) => Promise<void>;

        requestAppBanner?: () => Promise<void>;

        /** Acknowledges that a screencast frame has been received by the frontend. */
        screencastFrameAck?: (params: Page.ScreencastFrameAckRequest) => Promise<void>;

        /** Searches for given string in resource content. */
        searchInResource?: (params: Page.SearchInResourceRequest) => Promise<Page.SearchInResourceResponse>;

        /** Enable Chrome's experimental ad filter on all sites. */
        setAdBlockingEnabled?: (params: Page.SetAdBlockingEnabledRequest) => Promise<void>;

        /** Overrides the values of device screen dimensions (window.screen.width, window.screen.height,
window.innerWidth, window.innerHeight, and "device-width"/"device-height"-related CSS media
query results). */
        setDeviceMetricsOverride?: (params: Page.SetDeviceMetricsOverrideRequest) => Promise<void>;

        /** Overrides the Device Orientation. */
        setDeviceOrientationOverride?: (params: Page.SetDeviceOrientationOverrideRequest) => Promise<void>;

        /** Sets given markup as the document's HTML. */
        setDocumentContent?: (params: Page.SetDocumentContentRequest) => Promise<void>;

        /** Set the behavior when downloading a file. */
        setDownloadBehavior?: (params: Page.SetDownloadBehaviorRequest) => Promise<void>;

        /** Overrides the Geolocation Position or Error. Omitting any of the parameters emulates position
unavailable. */
        setGeolocationOverride?: (params: Page.SetGeolocationOverrideRequest) => Promise<void>;

        /** Controls whether page will emit lifecycle events. */
        setLifecycleEventsEnabled?: (params: Page.SetLifecycleEventsEnabledRequest) => Promise<void>;

        /** Toggles mouse event-based touch event emulation. */
        setTouchEmulationEnabled?: (params: Page.SetTouchEmulationEnabledRequest) => Promise<void>;

        /** Starts sending each frame using the `screencastFrame` event. */
        startScreencast?: (params: Page.StartScreencastRequest) => Promise<void>;

        /** Force the page stop all navigations and pending resource fetches. */
        stopLoading?: () => Promise<void>;

        /** Crashes renderer on the IO thread, generates minidumps. */
        crash?: () => Promise<void>;

        /** Stops sending each frame in the `screencastFrame`. */
        stopScreencast?: () => Promise<void>;

    }

    export interface PageClient extends PageCommands {
        onDomContentEventFired(handler: (params: Page.DomContentEventFiredEvent) => void): void;

        /** Fired when frame has been attached to its parent. */
        onFrameAttached(handler: (params: Page.FrameAttachedEvent) => void): void;

        /** Fired when frame no longer has a scheduled navigation. */
        onFrameClearedScheduledNavigation(handler: (params: Page.FrameClearedScheduledNavigationEvent) => void): void;

        /** Fired when frame has been detached from its parent. */
        onFrameDetached(handler: (params: Page.FrameDetachedEvent) => void): void;

        /** Fired once navigation of the frame has completed. Frame is now associated with the new loader. */
        onFrameNavigated(handler: (params: Page.FrameNavigatedEvent) => void): void;

        onFrameResized(handler: () => void): void;

        /** Fired when frame schedules a potential navigation. */
        onFrameScheduledNavigation(handler: (params: Page.FrameScheduledNavigationEvent) => void): void;

        /** Fired when frame has started loading. */
        onFrameStartedLoading(handler: (params: Page.FrameStartedLoadingEvent) => void): void;

        /** Fired when frame has stopped loading. */
        onFrameStoppedLoading(handler: (params: Page.FrameStoppedLoadingEvent) => void): void;

        /** Fired when interstitial page was hidden */
        onInterstitialHidden(handler: () => void): void;

        /** Fired when interstitial page was shown */
        onInterstitialShown(handler: () => void): void;

        /** Fired when a JavaScript initiated dialog (alert, confirm, prompt, or onbeforeunload) has been
closed. */
        onJavascriptDialogClosed(handler: (params: Page.JavascriptDialogClosedEvent) => void): void;

        /** Fired when a JavaScript initiated dialog (alert, confirm, prompt, or onbeforeunload) is about to
open. */
        onJavascriptDialogOpening(handler: (params: Page.JavascriptDialogOpeningEvent) => void): void;

        /** Fired for top level page lifecycle events such as navigation, load, paint, etc. */
        onLifecycleEvent(handler: (params: Page.LifecycleEventEvent) => void): void;

        onLoadEventFired(handler: (params: Page.LoadEventFiredEvent) => void): void;

        /** Compressed image data requested by the `startScreencast`. */
        onScreencastFrame(handler: (params: Page.ScreencastFrameEvent) => void): void;

        /** Fired when the page with currently enabled screencast was shown or hidden `. */
        onScreencastVisibilityChanged(handler: (params: Page.ScreencastVisibilityChangedEvent) => void): void;

        /** Fired when a new window is going to be opened, via window.open(), link click, form submission,
etc. */
        onWindowOpen(handler: (params: Page.WindowOpenEvent) => void): void;

    }

    export interface PageServer {
        emitDomContentEventFired(params: Page.DomContentEventFiredEvent): void;

        /** Fired when frame has been attached to its parent. */
        emitFrameAttached(params: Page.FrameAttachedEvent): void;

        /** Fired when frame no longer has a scheduled navigation. */
        emitFrameClearedScheduledNavigation(params: Page.FrameClearedScheduledNavigationEvent): void;

        /** Fired when frame has been detached from its parent. */
        emitFrameDetached(params: Page.FrameDetachedEvent): void;

        /** Fired once navigation of the frame has completed. Frame is now associated with the new loader. */
        emitFrameNavigated(params: Page.FrameNavigatedEvent): void;

        emitFrameResized(): void;

        /** Fired when frame schedules a potential navigation. */
        emitFrameScheduledNavigation(params: Page.FrameScheduledNavigationEvent): void;

        /** Fired when frame has started loading. */
        emitFrameStartedLoading(params: Page.FrameStartedLoadingEvent): void;

        /** Fired when frame has stopped loading. */
        emitFrameStoppedLoading(params: Page.FrameStoppedLoadingEvent): void;

        /** Fired when interstitial page was hidden */
        emitInterstitialHidden(): void;

        /** Fired when interstitial page was shown */
        emitInterstitialShown(): void;

        /** Fired when a JavaScript initiated dialog (alert, confirm, prompt, or onbeforeunload) has been
closed. */
        emitJavascriptDialogClosed(params: Page.JavascriptDialogClosedEvent): void;

        /** Fired when a JavaScript initiated dialog (alert, confirm, prompt, or onbeforeunload) is about to
open. */
        emitJavascriptDialogOpening(params: Page.JavascriptDialogOpeningEvent): void;

        /** Fired for top level page lifecycle events such as navigation, load, paint, etc. */
        emitLifecycleEvent(params: Page.LifecycleEventEvent): void;

        emitLoadEventFired(params: Page.LoadEventFiredEvent): void;

        /** Compressed image data requested by the `startScreencast`. */
        emitScreencastFrame(params: Page.ScreencastFrameEvent): void;

        /** Fired when the page with currently enabled screencast was shown or hidden `. */
        emitScreencastVisibilityChanged(params: Page.ScreencastVisibilityChangedEvent): void;

        /** Fired when a new window is going to be opened, via window.open(), link click, form submission,
etc. */
        emitWindowOpen(params: Page.WindowOpenEvent): void;

        expose(domain: PageCommands): void;

    }

    export module Performance {

        /** Run-time execution metric. */
        export interface Metric {
            /** Metric name. */
            name: string;

            /** Metric value. */
            value: number;

        }

        export interface GetMetricsResponse {
            /** Current values for run-time metrics. */
            metrics: Metric[];

        }

        export interface MetricsEvent {
            /** Current values of the metrics. */
            metrics: Metric[];

            /** Timestamp title. */
            title: string;

        }
    }

    export interface PerformanceCommands {
        /** Disable collecting and reporting metrics. */
        disable?: () => Promise<void>;

        /** Enable collecting and reporting metrics. */
        enable?: () => Promise<void>;

        /** Retrieve current values of run-time metrics. */
        getMetrics?: () => Promise<Performance.GetMetricsResponse>;

    }

    export interface PerformanceClient extends PerformanceCommands {
        /** Current values of the metrics. */
        onMetrics(handler: (params: Performance.MetricsEvent) => void): void;

    }

    export interface PerformanceServer {
        /** Current values of the metrics. */
        emitMetrics(params: Performance.MetricsEvent): void;

        expose(domain: PerformanceCommands): void;

    }

    /** Security */
    export module Security {

        /** An internal certificate ID value. */
        export type CertificateId = integer;

        /** A description of mixed content (HTTP resources on HTTPS pages), as defined by
https://www.w3.org/TR/mixed-content/#categories */
        export type MixedContentType = ('blockable' | 'optionally-blockable' | 'none');

        /** The security level of a page or resource. */
        export type SecurityState = ('unknown' | 'neutral' | 'insecure' | 'secure' | 'info');

        /** An explanation of an factor contributing to the security state. */
        export interface SecurityStateExplanation {
            /** Security state representing the severity of the factor being explained. */
            securityState: SecurityState;

            /** Title describing the type of factor. */
            title: string;

            /** Short phrase describing the type of factor. */
            summary: string;

            /** Full text explanation of the factor. */
            description: string;

            /** The type of mixed content described by the explanation. */
            mixedContentType: MixedContentType;

            /** Page certificate. */
            certificate: string[];

        }

        /** Information about insecure content on the page. */
        export interface InsecureContentStatus {
            /** True if the page was loaded over HTTPS and ran mixed (HTTP) content such as scripts. */
            ranMixedContent: boolean;

            /** True if the page was loaded over HTTPS and displayed mixed (HTTP) content such as images. */
            displayedMixedContent: boolean;

            /** True if the page was loaded over HTTPS and contained a form targeting an insecure url. */
            containedMixedForm: boolean;

            /** True if the page was loaded over HTTPS without certificate errors, and ran content such as
scripts that were loaded with certificate errors. */
            ranContentWithCertErrors: boolean;

            /** True if the page was loaded over HTTPS without certificate errors, and displayed content
such as images that were loaded with certificate errors. */
            displayedContentWithCertErrors: boolean;

            /** Security state representing a page that ran insecure content. */
            ranInsecureContentStyle: SecurityState;

            /** Security state representing a page that displayed insecure content. */
            displayedInsecureContentStyle: SecurityState;

        }

        /** The action to take when a certificate error occurs. continue will continue processing the
request and cancel will cancel the request. */
        export type CertificateErrorAction = ('continue' | 'cancel');

        export interface SetIgnoreCertificateErrorsRequest {
            /** If true, all certificate errors will be ignored. */
            ignore: boolean;

        }

        export interface HandleCertificateErrorRequest {
            /** The ID of the event. */
            eventId: integer;

            /** The action to take on the certificate error. */
            action: CertificateErrorAction;

        }

        export interface SetOverrideCertificateErrorsRequest {
            /** If true, certificate errors will be overridden. */
            override: boolean;

        }

        export interface CertificateErrorEvent {
            /** The ID of the event. */
            eventId: integer;

            /** The type of the error. */
            errorType: string;

            /** The url that was requested. */
            requestURL: string;

        }

        export interface SecurityStateChangedEvent {
            /** Security state. */
            securityState: SecurityState;

            /** True if the page was loaded over cryptographic transport such as HTTPS. */
            schemeIsCryptographic: boolean;

            /** List of explanations for the security state. If the overall security state is `insecure` or
`warning`, at least one corresponding explanation should be included. */
            explanations: SecurityStateExplanation[];

            /** Information about insecure content on the page. */
            insecureContentStatus: InsecureContentStatus;

            /** Overrides user-visible description of the state. */
            summary?: string;

        }
    }

    export interface SecurityCommands {
        /** Disables tracking security state changes. */
        disable?: () => Promise<void>;

        /** Enables tracking security state changes. */
        enable?: () => Promise<void>;

        /** Enable/disable whether all certificate errors should be ignored. */
        setIgnoreCertificateErrors?: (params: Security.SetIgnoreCertificateErrorsRequest) => Promise<void>;

        /** Handles a certificate error that fired a certificateError event. */
        handleCertificateError?: (params: Security.HandleCertificateErrorRequest) => Promise<void>;

        /** Enable/disable overriding certificate errors. If enabled, all certificate error events need to
be handled by the DevTools client and should be answered with handleCertificateError commands. */
        setOverrideCertificateErrors?: (params: Security.SetOverrideCertificateErrorsRequest) => Promise<void>;

    }

    export interface SecurityClient extends SecurityCommands {
        /** There is a certificate error. If overriding certificate errors is enabled, then it should be
handled with the handleCertificateError command. Note: this event does not fire if the
certificate error has been allowed internally. Only one client per target should override
certificate errors at the same time. */
        onCertificateError(handler: (params: Security.CertificateErrorEvent) => void): void;

        /** The security state of the page changed. */
        onSecurityStateChanged(handler: (params: Security.SecurityStateChangedEvent) => void): void;

    }

    export interface SecurityServer {
        /** There is a certificate error. If overriding certificate errors is enabled, then it should be
handled with the handleCertificateError command. Note: this event does not fire if the
certificate error has been allowed internally. Only one client per target should override
certificate errors at the same time. */
        emitCertificateError(params: Security.CertificateErrorEvent): void;

        /** The security state of the page changed. */
        emitSecurityStateChanged(params: Security.SecurityStateChangedEvent): void;

        expose(domain: SecurityCommands): void;

    }

    export module ServiceWorker {

        /** ServiceWorker registration. */
        export interface ServiceWorkerRegistration {
            registrationId: string;

            scopeURL: string;

            isDeleted: boolean;

        }

        export type ServiceWorkerVersionRunningStatus = ('stopped' | 'starting' | 'running' | 'stopping');

        export type ServiceWorkerVersionStatus = ('new' | 'installing' | 'installed' | 'activating' | 'activated' | 'redundant');

        /** ServiceWorker version. */
        export interface ServiceWorkerVersion {
            versionId: string;

            registrationId: string;

            scriptURL: string;

            runningStatus: ServiceWorkerVersionRunningStatus;

            status: ServiceWorkerVersionStatus;

            /** The Last-Modified header value of the main script. */
            scriptLastModified?: number;

            /** The time at which the response headers of the main script were received from the server.
For cached script it is the last time the cache entry was validated. */
            scriptResponseTime?: number;

            controlledClients?: Target.TargetID[];

            targetId?: Target.TargetID;

        }

        /** ServiceWorker error message. */
        export interface ServiceWorkerErrorMessage {
            errorMessage: string;

            registrationId: string;

            versionId: string;

            sourceURL: string;

            lineNumber: integer;

            columnNumber: integer;

        }

        export interface DeliverPushMessageRequest {
            origin: string;

            registrationId: string;

            data: string;

        }

        export interface DispatchSyncEventRequest {
            origin: string;

            registrationId: string;

            tag: string;

            lastChance: boolean;

        }

        export interface InspectWorkerRequest {
            versionId: string;

        }

        export interface SetForceUpdateOnPageLoadRequest {
            forceUpdateOnPageLoad: boolean;

        }

        export interface SkipWaitingRequest {
            scopeURL: string;

        }

        export interface StartWorkerRequest {
            scopeURL: string;

        }

        export interface StopWorkerRequest {
            versionId: string;

        }

        export interface UnregisterRequest {
            scopeURL: string;

        }

        export interface UpdateRegistrationRequest {
            scopeURL: string;

        }

        export interface WorkerErrorReportedEvent {
            errorMessage: ServiceWorkerErrorMessage;

        }

        export interface WorkerRegistrationUpdatedEvent {
            registrations: ServiceWorkerRegistration[];

        }

        export interface WorkerVersionUpdatedEvent {
            versions: ServiceWorkerVersion[];

        }
    }

    export interface ServiceWorkerCommands {
        deliverPushMessage?: (params: ServiceWorker.DeliverPushMessageRequest) => Promise<void>;

        disable?: () => Promise<void>;

        dispatchSyncEvent?: (params: ServiceWorker.DispatchSyncEventRequest) => Promise<void>;

        enable?: () => Promise<void>;

        inspectWorker?: (params: ServiceWorker.InspectWorkerRequest) => Promise<void>;

        setForceUpdateOnPageLoad?: (params: ServiceWorker.SetForceUpdateOnPageLoadRequest) => Promise<void>;

        skipWaiting?: (params: ServiceWorker.SkipWaitingRequest) => Promise<void>;

        startWorker?: (params: ServiceWorker.StartWorkerRequest) => Promise<void>;

        stopAllWorkers?: () => Promise<void>;

        stopWorker?: (params: ServiceWorker.StopWorkerRequest) => Promise<void>;

        unregister?: (params: ServiceWorker.UnregisterRequest) => Promise<void>;

        updateRegistration?: (params: ServiceWorker.UpdateRegistrationRequest) => Promise<void>;

    }

    export interface ServiceWorkerClient extends ServiceWorkerCommands {
        onWorkerErrorReported(handler: (params: ServiceWorker.WorkerErrorReportedEvent) => void): void;

        onWorkerRegistrationUpdated(handler: (params: ServiceWorker.WorkerRegistrationUpdatedEvent) => void): void;

        onWorkerVersionUpdated(handler: (params: ServiceWorker.WorkerVersionUpdatedEvent) => void): void;

    }

    export interface ServiceWorkerServer {
        emitWorkerErrorReported(params: ServiceWorker.WorkerErrorReportedEvent): void;

        emitWorkerRegistrationUpdated(params: ServiceWorker.WorkerRegistrationUpdatedEvent): void;

        emitWorkerVersionUpdated(params: ServiceWorker.WorkerVersionUpdatedEvent): void;

        expose(domain: ServiceWorkerCommands): void;

    }

    export module Storage {

        /** Enum of possible storage types. */
        export type StorageType = ('appcache' | 'cookies' | 'file_systems' | 'indexeddb' | 'local_storage' | 'shader_cache' | 'websql' | 'service_workers' | 'cache_storage' | 'all' | 'other');

        /** Usage for a storage type. */
        export interface UsageForType {
            /** Name of storage type. */
            storageType: StorageType;

            /** Storage usage (bytes). */
            usage: number;

        }

        export interface ClearDataForOriginRequest {
            /** Security origin. */
            origin: string;

            /** Comma separated origin names. */
            storageTypes: string;

        }

        export interface GetUsageAndQuotaRequest {
            /** Security origin. */
            origin: string;

        }

        export interface GetUsageAndQuotaResponse {
            /** Storage usage (bytes). */
            usage: number;

            /** Storage quota (bytes). */
            quota: number;

            /** Storage usage per type (bytes). */
            usageBreakdown: UsageForType[];

        }

        export interface TrackCacheStorageForOriginRequest {
            /** Security origin. */
            origin: string;

        }

        export interface TrackIndexedDBForOriginRequest {
            /** Security origin. */
            origin: string;

        }

        export interface UntrackCacheStorageForOriginRequest {
            /** Security origin. */
            origin: string;

        }

        export interface UntrackIndexedDBForOriginRequest {
            /** Security origin. */
            origin: string;

        }

        export interface CacheStorageContentUpdatedEvent {
            /** Origin to update. */
            origin: string;

            /** Name of cache in origin. */
            cacheName: string;

        }

        export interface CacheStorageListUpdatedEvent {
            /** Origin to update. */
            origin: string;

        }

        export interface IndexedDBContentUpdatedEvent {
            /** Origin to update. */
            origin: string;

            /** Database to update. */
            databaseName: string;

            /** ObjectStore to update. */
            objectStoreName: string;

        }

        export interface IndexedDBListUpdatedEvent {
            /** Origin to update. */
            origin: string;

        }
    }

    export interface StorageCommands {
        /** Clears storage for origin. */
        clearDataForOrigin?: (params: Storage.ClearDataForOriginRequest) => Promise<void>;

        /** Returns usage and quota in bytes. */
        getUsageAndQuota?: (params: Storage.GetUsageAndQuotaRequest) => Promise<Storage.GetUsageAndQuotaResponse>;

        /** Registers origin to be notified when an update occurs to its cache storage list. */
        trackCacheStorageForOrigin?: (params: Storage.TrackCacheStorageForOriginRequest) => Promise<void>;

        /** Registers origin to be notified when an update occurs to its IndexedDB. */
        trackIndexedDBForOrigin?: (params: Storage.TrackIndexedDBForOriginRequest) => Promise<void>;

        /** Unregisters origin from receiving notifications for cache storage. */
        untrackCacheStorageForOrigin?: (params: Storage.UntrackCacheStorageForOriginRequest) => Promise<void>;

        /** Unregisters origin from receiving notifications for IndexedDB. */
        untrackIndexedDBForOrigin?: (params: Storage.UntrackIndexedDBForOriginRequest) => Promise<void>;

    }

    export interface StorageClient extends StorageCommands {
        /** A cache's contents have been modified. */
        onCacheStorageContentUpdated(handler: (params: Storage.CacheStorageContentUpdatedEvent) => void): void;

        /** A cache has been added/deleted. */
        onCacheStorageListUpdated(handler: (params: Storage.CacheStorageListUpdatedEvent) => void): void;

        /** The origin's IndexedDB object store has been modified. */
        onIndexedDBContentUpdated(handler: (params: Storage.IndexedDBContentUpdatedEvent) => void): void;

        /** The origin's IndexedDB database list has been modified. */
        onIndexedDBListUpdated(handler: (params: Storage.IndexedDBListUpdatedEvent) => void): void;

    }

    export interface StorageServer {
        /** A cache's contents have been modified. */
        emitCacheStorageContentUpdated(params: Storage.CacheStorageContentUpdatedEvent): void;

        /** A cache has been added/deleted. */
        emitCacheStorageListUpdated(params: Storage.CacheStorageListUpdatedEvent): void;

        /** The origin's IndexedDB object store has been modified. */
        emitIndexedDBContentUpdated(params: Storage.IndexedDBContentUpdatedEvent): void;

        /** The origin's IndexedDB database list has been modified. */
        emitIndexedDBListUpdated(params: Storage.IndexedDBListUpdatedEvent): void;

        expose(domain: StorageCommands): void;

    }

    /** The SystemInfo domain defines methods and events for querying low-level system information. */
    export module SystemInfo {

        /** Describes a single graphics processor (GPU). */
        export interface GPUDevice {
            /** PCI ID of the GPU vendor, if available; 0 otherwise. */
            vendorId: number;

            /** PCI ID of the GPU device, if available; 0 otherwise. */
            deviceId: number;

            /** String description of the GPU vendor, if the PCI ID is not available. */
            vendorString: string;

            /** String description of the GPU device, if the PCI ID is not available. */
            deviceString: string;

        }

        /** Provides information about the GPU(s) on the system. */
        export interface GPUInfo {
            /** The graphics devices on the system. Element 0 is the primary GPU. */
            devices: GPUDevice[];

            /** An optional dictionary of additional GPU related attributes. */
            auxAttributes?: any;

            /** An optional dictionary of graphics features and their status. */
            featureStatus?: any;

            /** An optional array of GPU driver bug workarounds. */
            driverBugWorkarounds: string[];

        }

        export interface GetInfoResponse {
            /** Information about the GPUs on the system. */
            gpu: GPUInfo;

            /** A platform-dependent description of the model of the machine. On Mac OS, this is, for
example, 'MacBookPro'. Will be the empty string if not supported. */
            modelName: string;

            /** A platform-dependent description of the version of the machine. On Mac OS, this is, for
example, '10.1'. Will be the empty string if not supported. */
            modelVersion: string;

            /** The command line string used to launch the browser. Will be the empty string if not
supported. */
            commandLine: string;

        }
    }

    export interface SystemInfoCommands {
        /** Returns information about the system. */
        getInfo?: () => Promise<SystemInfo.GetInfoResponse>;

    }

    export interface SystemInfoClient extends SystemInfoCommands {
    }

    export interface SystemInfoServer {
        expose(domain: SystemInfoCommands): void;

    }

    /** Supports additional targets discovery and allows to attach to them. */
    export module Target {

        export type TargetID = string;

        /** Unique identifier of attached debugging session. */
        export type SessionID = string;

        export type BrowserContextID = string;

        export interface TargetInfo {
            targetId: TargetID;

            type: string;

            title: string;

            url: string;

            /** Whether the target has an attached client. */
            attached: boolean;

            /** Opener target Id */
            openerId?: TargetID;

        }

        export interface RemoteLocation {
            host: string;

            port: integer;

        }

        export interface ActivateTargetRequest {
            targetId: TargetID;

        }

        export interface AttachToTargetRequest {
            targetId: TargetID;

        }

        export interface AttachToTargetResponse {
            /** Id assigned to the session. */
            sessionId: SessionID;

        }

        export interface CloseTargetRequest {
            targetId: TargetID;

        }

        export interface CloseTargetResponse {
            success: boolean;

        }

        export interface CreateBrowserContextResponse {
            /** The id of the context created. */
            browserContextId: BrowserContextID;

        }

        export interface CreateTargetRequest {
            /** The initial URL the page will be navigated to. */
            url: string;

            /** Frame width in DIP (headless chrome only). */
            width?: integer;

            /** Frame height in DIP (headless chrome only). */
            height?: integer;

            /** The browser context to create the page in (headless chrome only). */
            browserContextId?: BrowserContextID;

            /** Whether BeginFrames for this target will be controlled via DevTools (headless chrome only,
not supported on MacOS yet, false by default). */
            enableBeginFrameControl?: boolean;

        }

        export interface CreateTargetResponse {
            /** The id of the page opened. */
            targetId: TargetID;

        }

        export interface DetachFromTargetRequest {
            /** Session to detach. */
            sessionId?: SessionID;

            /** Deprecated. */
            targetId?: TargetID;

        }

        export interface DisposeBrowserContextRequest {
            browserContextId: BrowserContextID;

        }

        export interface DisposeBrowserContextResponse {
            success: boolean;

        }

        export interface GetTargetInfoRequest {
            targetId: TargetID;

        }

        export interface GetTargetInfoResponse {
            targetInfo: TargetInfo;

        }

        export interface GetTargetsResponse {
            /** The list of targets. */
            targetInfos: TargetInfo[];

        }

        export interface SendMessageToTargetRequest {
            message: string;

            /** Identifier of the session. */
            sessionId?: SessionID;

            /** Deprecated. */
            targetId?: TargetID;

        }

        export interface SetAttachToFramesRequest {
            /** Whether to attach to frames. */
            value: boolean;

        }

        export interface SetAutoAttachRequest {
            /** Whether to auto-attach to related targets. */
            autoAttach: boolean;

            /** Whether to pause new targets when attaching to them. Use `Runtime.runIfWaitingForDebugger`
to run paused targets. */
            waitForDebuggerOnStart: boolean;

        }

        export interface SetDiscoverTargetsRequest {
            /** Whether to discover available targets. */
            discover: boolean;

        }

        export interface SetRemoteLocationsRequest {
            /** List of remote locations. */
            locations: RemoteLocation[];

        }

        export interface AttachedToTargetEvent {
            /** Identifier assigned to the session used to send/receive messages. */
            sessionId: SessionID;

            targetInfo: TargetInfo;

            waitingForDebugger: boolean;

        }

        export interface DetachedFromTargetEvent {
            /** Detached session identifier. */
            sessionId: SessionID;

            /** Deprecated. */
            targetId?: TargetID;

        }

        export interface ReceivedMessageFromTargetEvent {
            /** Identifier of a session which sends a message. */
            sessionId: SessionID;

            message: string;

            /** Deprecated. */
            targetId?: TargetID;

        }

        export interface TargetCreatedEvent {
            targetInfo: TargetInfo;

        }

        export interface TargetDestroyedEvent {
            targetId: TargetID;

        }

        export interface TargetInfoChangedEvent {
            targetInfo: TargetInfo;

        }
    }

    export interface TargetCommands {
        /** Activates (focuses) the target. */
        activateTarget?: (params: Target.ActivateTargetRequest) => Promise<void>;

        /** Attaches to the target with given id. */
        attachToTarget?: (params: Target.AttachToTargetRequest) => Promise<Target.AttachToTargetResponse>;

        /** Closes the target. If the target is a page that gets closed too. */
        closeTarget?: (params: Target.CloseTargetRequest) => Promise<Target.CloseTargetResponse>;

        /** Creates a new empty BrowserContext. Similar to an incognito profile but you can have more than
one. */
        createBrowserContext?: () => Promise<Target.CreateBrowserContextResponse>;

        /** Creates a new page. */
        createTarget?: (params: Target.CreateTargetRequest) => Promise<Target.CreateTargetResponse>;

        /** Detaches session with given id. */
        detachFromTarget?: (params: Target.DetachFromTargetRequest) => Promise<void>;

        /** Deletes a BrowserContext, will fail of any open page uses it. */
        disposeBrowserContext?: (params: Target.DisposeBrowserContextRequest) => Promise<Target.DisposeBrowserContextResponse>;

        /** Returns information about a target. */
        getTargetInfo?: (params: Target.GetTargetInfoRequest) => Promise<Target.GetTargetInfoResponse>;

        /** Retrieves a list of available targets. */
        getTargets?: () => Promise<Target.GetTargetsResponse>;

        /** Sends protocol message over session with given id. */
        sendMessageToTarget?: (params: Target.SendMessageToTargetRequest) => Promise<void>;

        setAttachToFrames?: (params: Target.SetAttachToFramesRequest) => Promise<void>;

        /** Controls whether to automatically attach to new targets which are considered to be related to
this one. When turned on, attaches to all existing related targets as well. When turned off,
automatically detaches from all currently attached targets. */
        setAutoAttach?: (params: Target.SetAutoAttachRequest) => Promise<void>;

        /** Controls whether to discover available targets and notify via
`targetCreated/targetInfoChanged/targetDestroyed` events. */
        setDiscoverTargets?: (params: Target.SetDiscoverTargetsRequest) => Promise<void>;

        /** Enables target discovery for the specified locations, when `setDiscoverTargets` was set to
`true`. */
        setRemoteLocations?: (params: Target.SetRemoteLocationsRequest) => Promise<void>;

    }

    export interface TargetClient extends TargetCommands {
        /** Issued when attached to target because of auto-attach or `attachToTarget` command. */
        onAttachedToTarget(handler: (params: Target.AttachedToTargetEvent) => void): void;

        /** Issued when detached from target for any reason (including `detachFromTarget` command). Can be
issued multiple times per target if multiple sessions have been attached to it. */
        onDetachedFromTarget(handler: (params: Target.DetachedFromTargetEvent) => void): void;

        /** Notifies about a new protocol message received from the session (as reported in
`attachedToTarget` event). */
        onReceivedMessageFromTarget(handler: (params: Target.ReceivedMessageFromTargetEvent) => void): void;

        /** Issued when a possible inspection target is created. */
        onTargetCreated(handler: (params: Target.TargetCreatedEvent) => void): void;

        /** Issued when a target is destroyed. */
        onTargetDestroyed(handler: (params: Target.TargetDestroyedEvent) => void): void;

        /** Issued when some information about a target has changed. This only happens between
`targetCreated` and `targetDestroyed`. */
        onTargetInfoChanged(handler: (params: Target.TargetInfoChangedEvent) => void): void;

    }

    export interface TargetServer {
        /** Issued when attached to target because of auto-attach or `attachToTarget` command. */
        emitAttachedToTarget(params: Target.AttachedToTargetEvent): void;

        /** Issued when detached from target for any reason (including `detachFromTarget` command). Can be
issued multiple times per target if multiple sessions have been attached to it. */
        emitDetachedFromTarget(params: Target.DetachedFromTargetEvent): void;

        /** Notifies about a new protocol message received from the session (as reported in
`attachedToTarget` event). */
        emitReceivedMessageFromTarget(params: Target.ReceivedMessageFromTargetEvent): void;

        /** Issued when a possible inspection target is created. */
        emitTargetCreated(params: Target.TargetCreatedEvent): void;

        /** Issued when a target is destroyed. */
        emitTargetDestroyed(params: Target.TargetDestroyedEvent): void;

        /** Issued when some information about a target has changed. This only happens between
`targetCreated` and `targetDestroyed`. */
        emitTargetInfoChanged(params: Target.TargetInfoChangedEvent): void;

        expose(domain: TargetCommands): void;

    }

    /** The Tethering domain defines methods and events for browser port binding. */
    export module Tethering {

        export interface BindRequest {
            /** Port number to bind. */
            port: integer;

        }

        export interface UnbindRequest {
            /** Port number to unbind. */
            port: integer;

        }

        export interface AcceptedEvent {
            /** Port number that was successfully bound. */
            port: integer;

            /** Connection id to be used. */
            connectionId: string;

        }
    }

    export interface TetheringCommands {
        /** Request browser port binding. */
        bind?: (params: Tethering.BindRequest) => Promise<void>;

        /** Request browser port unbinding. */
        unbind?: (params: Tethering.UnbindRequest) => Promise<void>;

    }

    export interface TetheringClient extends TetheringCommands {
        /** Informs that port was successfully bound and got a specified connection id. */
        onAccepted(handler: (params: Tethering.AcceptedEvent) => void): void;

    }

    export interface TetheringServer {
        /** Informs that port was successfully bound and got a specified connection id. */
        emitAccepted(params: Tethering.AcceptedEvent): void;

        expose(domain: TetheringCommands): void;

    }

    export module Tracing {

        /** Configuration for memory dump. Used only when "memory-infra" category is enabled. */
        export interface MemoryDumpConfig {
            [key: string]: string;
        }

        export interface TraceConfig {
            /** Controls how the trace buffer stores data. */
            recordMode?: ('recordUntilFull' | 'recordContinuously' | 'recordAsMuchAsPossible' | 'echoToConsole');

            /** Turns on JavaScript stack sampling. */
            enableSampling?: boolean;

            /** Turns on system tracing. */
            enableSystrace?: boolean;

            /** Turns on argument filter. */
            enableArgumentFilter?: boolean;

            /** Included category filters. */
            includedCategories?: string[];

            /** Excluded category filters. */
            excludedCategories?: string[];

            /** Configuration to synthesize the delays in tracing. */
            syntheticDelays?: string[];

            /** Configuration for memory dump triggers. Used only when "memory-infra" category is enabled. */
            memoryDumpConfig?: MemoryDumpConfig;

        }

        /** Compression type to use for traces returned via streams. */
        export type StreamCompression = ('none' | 'gzip');

        export interface GetCategoriesResponse {
            /** A list of supported tracing categories. */
            categories: string[];

        }

        export interface RecordClockSyncMarkerRequest {
            /** The ID of this clock sync marker */
            syncId: string;

        }

        export interface RequestMemoryDumpResponse {
            /** GUID of the resulting global memory dump. */
            dumpGuid: string;

            /** True iff the global memory dump succeeded. */
            success: boolean;

        }

        export interface StartRequest {
            /** Category/tag filter */
            categories?: string;

            /** Tracing options */
            options?: string;

            /** If set, the agent will issue bufferUsage events at this interval, specified in milliseconds */
            bufferUsageReportingInterval?: number;

            /** Whether to report trace events as series of dataCollected events or to save trace to a
stream (defaults to `ReportEvents`). */
            transferMode?: ('ReportEvents' | 'ReturnAsStream');

            /** Compression format to use. This only applies when using `ReturnAsStream`
transfer mode (defaults to `none`) */
            streamCompression?: StreamCompression;

            traceConfig?: TraceConfig;

        }

        export interface BufferUsageEvent {
            /** A number in range [0..1] that indicates the used size of event buffer as a fraction of its
total size. */
            percentFull?: number;

            /** An approximate number of events in the trace log. */
            eventCount?: number;

            /** A number in range [0..1] that indicates the used size of event buffer as a fraction of its
total size. */
            value?: number;

        }

        export interface DataCollectedEvent {
            value: any[];

        }

        export interface TracingCompleteEvent {
            /** A handle of the stream that holds resulting trace data. */
            stream?: IO.StreamHandle;

            /** Compression format of returned stream. */
            streamCompression?: StreamCompression;

        }
    }

    export interface TracingCommands {
        /** Stop trace events collection. */
        end?: () => Promise<void>;

        /** Gets supported tracing categories. */
        getCategories?: () => Promise<Tracing.GetCategoriesResponse>;

        /** Record a clock sync marker in the trace. */
        recordClockSyncMarker?: (params: Tracing.RecordClockSyncMarkerRequest) => Promise<void>;

        /** Request a global memory dump. */
        requestMemoryDump?: () => Promise<Tracing.RequestMemoryDumpResponse>;

        /** Start trace events collection. */
        start?: (params: Tracing.StartRequest) => Promise<void>;

    }

    export interface TracingClient extends TracingCommands {
        onBufferUsage(handler: (params: Tracing.BufferUsageEvent) => void): void;

        /** Contains an bucket of collected trace events. When tracing is stopped collected events will be
send as a sequence of dataCollected events followed by tracingComplete event. */
        onDataCollected(handler: (params: Tracing.DataCollectedEvent) => void): void;

        /** Signals that tracing is stopped and there is no trace buffers pending flush, all data were
delivered via dataCollected events. */
        onTracingComplete(handler: (params: Tracing.TracingCompleteEvent) => void): void;

    }

    export interface TracingServer {
        emitBufferUsage(params: Tracing.BufferUsageEvent): void;

        /** Contains an bucket of collected trace events. When tracing is stopped collected events will be
send as a sequence of dataCollected events followed by tracingComplete event. */
        emitDataCollected(params: Tracing.DataCollectedEvent): void;

        /** Signals that tracing is stopped and there is no trace buffers pending flush, all data were
delivered via dataCollected events. */
        emitTracingComplete(params: Tracing.TracingCompleteEvent): void;

        expose(domain: TracingCommands): void;

    }
}

export default Crdp;