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feat(adapters): add GCP VertexAI adapter
Signed-off-by: Akihiko Kuroda <akihikokuroda2020@gmail.com>
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,35 @@ | ||
| /** | ||
| * Copyright 2024 IBM Corp. | ||
| * | ||
| * Licensed under the Apache License, Version 2.0 (the "License"); | ||
| * you may not use this file except in compliance with the License. | ||
| * You may obtain a copy of the License at | ||
| * | ||
| * http://www.apache.org/licenses/LICENSE-2.0 | ||
| * | ||
| * Unless required by applicable law or agreed to in writing, software | ||
| * distributed under the License is distributed on an "AS IS" BASIS, | ||
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| * See the License for the specific language governing permissions and | ||
| * limitations under the License. | ||
| */ | ||
|
|
||
| import { verifyDeserialization } from "@tests/e2e/utils.js"; | ||
| import { VertexAIChatLLM } from "@/adapters/vertexai/chat.js"; | ||
|
|
||
| describe("VertexAI ChatLLM", () => { | ||
| const getInstance = () => { | ||
| return new VertexAIChatLLM({ | ||
| modelId: "gemini-1.5-flash-001", | ||
| location: "us-central1", | ||
| project: "systemInstruction", | ||
| }); | ||
| }; | ||
|
|
||
| it("Serializes", async () => { | ||
| const instance = getInstance(); | ||
| const serialized = instance.serialize(); | ||
| const deserialized = VertexAIChatLLM.fromSerialized(serialized); | ||
| verifyDeserialization(instance, deserialized); | ||
| }); | ||
| }); |
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| /** | ||
| * Copyright 2024 IBM Corp. | ||
| * | ||
| * Licensed under the Apache License, Version 2.0 (the "License"); | ||
| * you may not use this file except in compliance with the License. | ||
| * You may obtain a copy of the License at | ||
| * | ||
| * http://www.apache.org/licenses/LICENSE-2.0 | ||
| * | ||
| * Unless required by applicable law or agreed to in writing, software | ||
| * distributed under the License is distributed on an "AS IS" BASIS, | ||
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| * See the License for the specific language governing permissions and | ||
| * limitations under the License. | ||
| */ | ||
|
|
||
| import { | ||
| AsyncStream, | ||
| BaseLLMTokenizeOutput, | ||
| ExecutionOptions, | ||
| GenerateCallbacks, | ||
| GenerateOptions, | ||
| LLMCache, | ||
| LLMMeta, | ||
| } from "@/llms/base.js"; | ||
| import { shallowCopy } from "@/serializer/utils.js"; | ||
| import type { GetRunContext } from "@/context.js"; | ||
| import { Emitter } from "@/emitter/emitter.js"; | ||
| import { VertexAI } from "@google-cloud/vertexai"; | ||
| import { ChatLLM, ChatLLMOutput } from "@/llms/chat.js"; | ||
| import { BaseMessage, Role } from "@/llms/primitives/message.js"; | ||
| import { signalRace } from "@/internals/helpers/promise.js"; | ||
| import { processContentResponse, registerVertexAI, createModel } from "./utils.js"; | ||
|
|
||
| export class VertexAIChatLLMOutput extends ChatLLMOutput { | ||
| public readonly chunks: BaseMessage[] = []; | ||
|
|
||
| constructor(chunk: BaseMessage) { | ||
| super(); | ||
| this.chunks.push(chunk); | ||
| } | ||
|
|
||
| get messages() { | ||
| return this.chunks; | ||
| } | ||
|
|
||
| merge(other: VertexAIChatLLMOutput): void { | ||
| this.chunks.push(...other.chunks); | ||
| } | ||
|
|
||
| getTextContent(): string { | ||
| return this.chunks.map((result) => result.text).join(""); | ||
| } | ||
|
|
||
| toString() { | ||
| return this.getTextContent(); | ||
| } | ||
|
|
||
| createSnapshot() { | ||
| return { chunks: shallowCopy(this.chunks) }; | ||
| } | ||
|
|
||
| loadSnapshot(snapshot: typeof this.createSnapshot): void { | ||
| Object.assign(this, snapshot); | ||
| } | ||
| } | ||
|
|
||
| export interface VertexAIChatLLMInput { | ||
| modelId: string; | ||
| project: string; | ||
| location: string; | ||
| client?: VertexAI; | ||
| executionOptions?: ExecutionOptions; | ||
| cache?: LLMCache<VertexAIChatLLMOutput>; | ||
| parameters?: Record<string, any>; | ||
| } | ||
|
|
||
| export class VertexAIChatLLM extends ChatLLM<VertexAIChatLLMOutput> { | ||
| public readonly emitter: Emitter<GenerateCallbacks> = Emitter.root.child({ | ||
| namespace: ["vertexai", "llm"], | ||
| creator: this, | ||
| }); | ||
|
|
||
| protected client: VertexAI; | ||
|
|
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| constructor(protected readonly input: VertexAIChatLLMInput) { | ||
| super(input.modelId, input.executionOptions, input.cache); | ||
| this.client = new VertexAI({ project: input.project, location: input.location }); | ||
| } | ||
|
|
||
| static { | ||
| this.register(); | ||
| registerVertexAI(); | ||
| } | ||
|
|
||
| async meta(): Promise<LLMMeta> { | ||
| return { tokenLimit: Infinity }; | ||
| } | ||
|
|
||
| async tokenize(input: BaseMessage[]): Promise<BaseLLMTokenizeOutput> { | ||
| const generativeModel = createModel(this.client, this.modelId); | ||
| const response = await generativeModel.countTokens({ | ||
| contents: input.map((msg) => ({ parts: [{ text: msg.text }], role: msg.role })), | ||
| }); | ||
| return { | ||
| tokensCount: response.totalTokens, | ||
| }; | ||
| } | ||
|
|
||
| protected async _generate( | ||
| input: BaseMessage[], | ||
| options: GenerateOptions, | ||
| run: GetRunContext<this>, | ||
| ): Promise<VertexAIChatLLMOutput> { | ||
| const generativeModel = createModel(this.client, this.modelId, options.guided?.json); | ||
| const response = await signalRace( | ||
| () => | ||
| generativeModel.generateContent({ | ||
| contents: input.map((msg) => ({ parts: [{ text: msg.text }], role: msg.role })), | ||
| }), | ||
| run.signal, | ||
| ); | ||
| const result = BaseMessage.of({ | ||
| role: Role.ASSISTANT, | ||
| text: processContentResponse(response.response), | ||
| }); | ||
| return new VertexAIChatLLMOutput(result); | ||
| } | ||
|
|
||
| protected async *_stream( | ||
| input: BaseMessage[], | ||
| options: GenerateOptions | undefined, | ||
| run: GetRunContext<this>, | ||
| ): AsyncStream<VertexAIChatLLMOutput, void> { | ||
| const generativeModel = createModel(this.client, this.modelId, options?.guided?.json); | ||
| const chat = generativeModel.startChat(); | ||
| const response = await chat.sendMessageStream(input.map((msg) => msg.text)); | ||
| for await (const chunk of await response.stream) { | ||
| if (options?.signal?.aborted) { | ||
| break; | ||
| } | ||
| const result = BaseMessage.of({ | ||
| role: Role.ASSISTANT, | ||
| text: processContentResponse(chunk), | ||
| }); | ||
| yield new VertexAIChatLLMOutput(result); | ||
| } | ||
| run.signal.throwIfAborted(); | ||
| } | ||
|
|
||
| createSnapshot() { | ||
| return { | ||
| ...super.createSnapshot(), | ||
| input: shallowCopy(this.input), | ||
| client: this.client, | ||
| }; | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,35 @@ | ||
| /** | ||
| * Copyright 2024 IBM Corp. | ||
| * | ||
| * Licensed under the Apache License, Version 2.0 (the "License"); | ||
| * you may not use this file except in compliance with the License. | ||
| * You may obtain a copy of the License at | ||
| * | ||
| * http://www.apache.org/licenses/LICENSE-2.0 | ||
| * | ||
| * Unless required by applicable law or agreed to in writing, software | ||
| * distributed under the License is distributed on an "AS IS" BASIS, | ||
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| * See the License for the specific language governing permissions and | ||
| * limitations under the License. | ||
| */ | ||
|
|
||
| import { verifyDeserialization } from "@tests/e2e/utils.js"; | ||
| import { VertexAILLM } from "@/adapters/vertexai/llm.js"; | ||
|
|
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| describe("VertexAI LLM", () => { | ||
| const getInstance = () => { | ||
| return new VertexAILLM({ | ||
| modelId: "gemini-1.5-flash-001", | ||
| location: "us-central1", | ||
| project: "systemInstruction", | ||
| }); | ||
| }; | ||
|
|
||
| it("Serializes", async () => { | ||
| const instance = getInstance(); | ||
| const serialized = instance.serialize(); | ||
| const deserialized = VertexAILLM.fromSerialized(serialized); | ||
| verifyDeserialization(instance, deserialized); | ||
| }); | ||
| }); |
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