diff --git a/cloud-tasks/createHttpTask.js b/cloud-tasks/createHttpTask.js
index bfff837481..a43b15a94b 100644
--- a/cloud-tasks/createHttpTask.js
+++ b/cloud-tasks/createHttpTask.js
@@ -13,7 +13,6 @@
 // limitations under the License.
 
 'use strict';
-/*eslint no-warning-comments: [0, { "terms": ["todo", "fixme"], "location": "anywhere" }]*/
 
 // sample-metadata:
 //   title: Cloud Tasks Create HTTP Target
@@ -23,7 +22,7 @@
 /**
  * Create a task with an HTTP target for a given queue with an arbitrary payload.
  */
-async function createHttpTask(
+function main(
   project = 'my-project-id', // Your GCP Project id
   queue = 'my-appengine-queue', // Name of your Queue
   location = 'us-central1', // The GCP region of your queue
@@ -38,41 +37,49 @@ async function createHttpTask(
   // Instantiates a client.
   const client = new CloudTasksClient();
 
-  // TODO(developer): Uncomment these lines and replace with your values.
-  // const project = 'my-project-id';
-  // const queue = 'my-queue';
-  // const location = 'us-central1';
-  // const url = 'https://example.com/taskhandler';
-  // const payload = 'Hello, World!';
+  async function createHttpTask() {
+    // TODO(developer): Uncomment these lines and replace with your values.
+    // const project = 'my-project-id';
+    // const queue = 'my-queue';
+    // const location = 'us-central1';
+    // const url = 'https://example.com/taskhandler';
+    // const payload = 'Hello, World!';
 
-  // Construct the fully qualified queue name.
-  const parent = client.queuePath(project, location, queue);
+    // Construct the fully qualified queue name.
+    const parent = client.queuePath(project, location, queue);
 
-  const task = {
-    httpRequest: {
-      httpMethod: 'POST',
-      url,
-    },
-  };
+    const task = {
+      httpRequest: {
+        httpMethod: 'POST',
+        url,
+      },
+    };
 
-  if (payload) {
-    task.httpRequest.body = Buffer.from(payload).toString('base64');
-  }
+    if (payload) {
+      task.httpRequest.body = Buffer.from(payload).toString('base64');
+    }
 
-  if (inSeconds) {
-    // The time when the task is scheduled to be attempted.
-    task.scheduleTime = {
-      seconds: inSeconds + Date.now() / 1000,
-    };
-  }
+    if (inSeconds) {
+      // The time when the task is scheduled to be attempted.
+      task.scheduleTime = {
+        seconds: inSeconds + Date.now() / 1000,
+      };
+    }
 
-  // Send create task request.
-  console.log('Sending task:');
-  console.log(task);
-  const request = {parent, task};
-  const [response] = await client.createTask(request);
-  console.log(`Created task ${response.name}`);
+    // Send create task request.
+    console.log('Sending task:');
+    console.log(task);
+    const request = {parent, task};
+    const [response] = await client.createTask(request);
+    console.log(`Created task ${response.name}`);
+  }
+  createHttpTask();
   // [END cloud_tasks_create_http_task]
 }
 
-createHttpTask(...process.argv.slice(2)).catch(console.error);
+process.on('unhandledRejection', err => {
+  console.error(err.message);
+  process.exitCode = 1;
+});
+
+main(...process.argv.slice(2));
diff --git a/cloud-tasks/createHttpTaskWithToken.js b/cloud-tasks/createHttpTaskWithToken.js
index a82db52855..0c8380edc7 100644
--- a/cloud-tasks/createHttpTaskWithToken.js
+++ b/cloud-tasks/createHttpTaskWithToken.js
@@ -13,7 +13,6 @@
 // limitations under the License.
 
 'use strict';
-/*eslint no-warning-comments: [0, { "terms": ["todo", "fixme"], "location": "anywhere" }]*/
 
 // sample-metadata:
 //   title: Cloud Tasks Create HTTP Target with Token
@@ -23,7 +22,7 @@
 /**
  * Create a task with an HTTP target for a given queue with an arbitrary payload.
  */
-async function createHttpTaskWithToken(
+function main(
   project = 'my-project-id', // Your GCP Project id
   queue = 'my-queue', // Name of your Queue
   location = 'us-central1', // The GCP region of your queue
@@ -39,47 +38,54 @@ async function createHttpTaskWithToken(
   // Instantiates a client.
   const client = new CloudTasksClient();
 
-  // TODO(developer): Uncomment these lines and replace with your values.
-  // const project = 'my-project-id';
-  // const queue = 'my-queue';
-  // const location = 'us-central1';
-  // const url = 'https://example.com/taskhandler';
-  // const serviceAccountEmail = 'client@<project-id>.iam.gserviceaccount.com';
-  // const payload = 'Hello, World!';
+  async function createHttpTaskWithToken() {
+    // TODO(developer): Uncomment these lines and replace with your values.
+    // const project = 'my-project-id';
+    // const queue = 'my-queue';
+    // const location = 'us-central1';
+    // const url = 'https://example.com/taskhandler';
+    // const serviceAccountEmail = 'client@<project-id>.iam.gserviceaccount.com';
+    // const payload = 'Hello, World!';
 
-  // Construct the fully qualified queue name.
-  const parent = client.queuePath(project, location, queue);
+    // Construct the fully qualified queue name.
+    const parent = client.queuePath(project, location, queue);
 
-  const task = {
-    httpRequest: {
-      httpMethod: 'POST',
-      url,
-      oidcToken: {
-        serviceAccountEmail,
+    const task = {
+      httpRequest: {
+        httpMethod: 'POST',
+        url,
+        oidcToken: {
+          serviceAccountEmail,
+        },
       },
-    },
-  };
-
-  if (payload) {
-    task.httpRequest.body = Buffer.from(payload).toString('base64');
-  }
-
-  if (inSeconds) {
-    // The time when the task is scheduled to be attempted.
-    task.scheduleTime = {
-      seconds: inSeconds + Date.now() / 1000,
     };
-  }
 
-  console.log('Sending task:');
-  console.log(task);
-  // Send create task request.
-  const request = {parent, task};
-  const [response] = await client.createTask(request);
-  const name = response.name;
-  console.log(`Created task ${name}`);
+    if (payload) {
+      task.httpRequest.body = Buffer.from(payload).toString('base64');
+    }
 
+    if (inSeconds) {
+      // The time when the task is scheduled to be attempted.
+      task.scheduleTime = {
+        seconds: inSeconds + Date.now() / 1000,
+      };
+    }
+
+    console.log('Sending task:');
+    console.log(task);
+    // Send create task request.
+    const request = {parent, task};
+    const [response] = await client.createTask(request);
+    const name = response.name;
+    console.log(`Created task ${name}`);
+  }
+  createHttpTaskWithToken();
   // [END cloud_tasks_create_http_task_with_token]
 }
 
-createHttpTaskWithToken(...process.argv.slice(2)).catch(console.error);
+process.on('unhandledRejection', err => {
+  console.error(err.message);
+  process.exitCode = 1;
+});
+
+main(...process.argv.slice(2));
diff --git a/cloud-tasks/createQueue.js b/cloud-tasks/createQueue.js
index 4f78c9605e..6d0c223d70 100644
--- a/cloud-tasks/createQueue.js
+++ b/cloud-tasks/createQueue.js
@@ -14,39 +14,46 @@
 
 'use strict';
 
-// [START cloud_tasks_create_queue]
 /**
  * Create a new Task Queue
  */
-async function createQueue(
+function main(
   project = 'my-project-id', // Your GCP Project id
   queue = 'my-appengine-queue', // Name of the Queue to create
   location = 'us-central1' // The GCP region in which to create the queue
 ) {
+  // [START cloud_tasks_create_queue]
   // Imports the Google Cloud Tasks library.
   const cloudTasks = require('@google-cloud/tasks');
 
   // Instantiates a client.
   const client = new cloudTasks.CloudTasksClient();
 
-  // Send create queue request.
-  const [response] = await client.createQueue({
-    // The fully qualified path to the location where the queue is created
-    parent: client.locationPath(project, location),
-    queue: {
-      // The fully qualified path to the queue
-      name: client.queuePath(project, location, queue),
-      appEngineHttpQueue: {
-        appEngineRoutingOverride: {
-          // The App Engine service that will receive the tasks.
-          service: 'default',
+  async function createQueue() {
+    // Send create queue request.
+    const [response] = await client.createQueue({
+      // The fully qualified path to the location where the queue is created
+      parent: client.locationPath(project, location),
+      queue: {
+        // The fully qualified path to the queue
+        name: client.queuePath(project, location, queue),
+        appEngineHttpQueue: {
+          appEngineRoutingOverride: {
+            // The App Engine service that will receive the tasks.
+            service: 'default',
+          },
         },
       },
-    },
-  });
-  console.log(`Created queue ${response.name}`);
+    });
+    console.log(`Created queue ${response.name}`);
+  }
+  createQueue();
+  // [END cloud_tasks_create_queue]
 }
-// [END cloud_tasks_create_queue]
 
-const args = process.argv.slice(2);
-createQueue(...args).catch(console.error);
+process.on('unhandledRejection', err => {
+  console.error(err.message);
+  process.exitCode = 1;
+});
+
+main(...process.argv.slice(2));
diff --git a/cloud-tasks/createTask.js b/cloud-tasks/createTask.js
index 80307f126d..fb3335f2bd 100644
--- a/cloud-tasks/createTask.js
+++ b/cloud-tasks/createTask.js
@@ -13,7 +13,6 @@
 // limitations under the License.
 
 'use strict';
-/*eslint no-warning-comments: [0, { "terms": ["todo", "fixme"], "location": "anywhere" }]*/
 
 // sample-metadata:
 //   title: Cloud Tasks Create App Engine Target
@@ -23,7 +22,7 @@
 /**
  * Create a task for a given queue with an arbitrary payload.
  */
-async function createTask(
+function main(
   project = 'my-project-id', // Your GCP Project id
   queue = 'my-appengine-queue', // Name of your Queue
   location = 'us-central1', // The GCP region of your queue
@@ -38,43 +37,50 @@ async function createTask(
   // Instantiates a client.
   const client = new CloudTasksClient();
 
-  // TODO(developer): Uncomment these lines and replace with your values.
-  // const project = 'my-project-id';
-  // const queue = 'my-appengine-queue';
-  // const location = 'us-central1';
-  // const payload = 'Hello, World!';
+  async function createTask() {
+    // TODO(developer): Uncomment these lines and replace with your values.
+    // const project = 'my-project-id';
+    // const queue = 'my-appengine-queue';
+    // const location = 'us-central1';
+    // const payload = 'Hello, World!';
 
-  // Construct the fully qualified queue name.
-  const parent = client.queuePath(project, location, queue);
+    // Construct the fully qualified queue name.
+    const parent = client.queuePath(project, location, queue);
 
-  const task = {
-    appEngineHttpRequest: {
-      httpMethod: 'POST',
-      relativeUri: '/log_payload',
-    },
-  };
-
-  if (payload) {
-    task.appEngineHttpRequest.body = Buffer.from(payload).toString('base64');
-  }
-
-  if (inSeconds) {
-    // The time when the task is scheduled to be attempted.
-    task.scheduleTime = {
-      seconds: inSeconds + Date.now() / 1000,
+    const task = {
+      appEngineHttpRequest: {
+        httpMethod: 'POST',
+        relativeUri: '/log_payload',
+      },
     };
-  }
 
-  console.log('Sending task:');
-  console.log(task);
-  // Send create task request.
-  const request = {parent, task};
-  const [response] = await client.createTask(request);
-  const name = response.name;
-  console.log(`Created task ${name}`);
+    if (payload) {
+      task.appEngineHttpRequest.body = Buffer.from(payload).toString('base64');
+    }
 
+    if (inSeconds) {
+      // The time when the task is scheduled to be attempted.
+      task.scheduleTime = {
+        seconds: inSeconds + Date.now() / 1000,
+      };
+    }
+
+    console.log('Sending task:');
+    console.log(task);
+    // Send create task request.
+    const request = {parent, task};
+    const [response] = await client.createTask(request);
+    const name = response.name;
+    console.log(`Created task ${name}`);
+  }
+  createTask();
   // [END cloud_tasks_appengine_create_task]
   // [END tasks_quickstart]
 }
 
-createTask(...process.argv.slice(2)).catch(console.error);
+process.on('unhandledRejection', err => {
+  console.error(err.message);
+  process.exitCode = 1;
+});
+
+main(...process.argv.slice(2));
diff --git a/cloud-tasks/deleteQueue.js b/cloud-tasks/deleteQueue.js
index 1cedca2760..ab124aed9d 100644
--- a/cloud-tasks/deleteQueue.js
+++ b/cloud-tasks/deleteQueue.js
@@ -14,29 +14,36 @@
 
 'use strict';
 
-// [START cloud_tasks_delete_queue]
 /**
  * Delete a given Queue
  */
-async function deleteQueue(
+function main(
   project = 'my-project-id', // Your GCP Project id
   queue = 'my-appengine-queue', // Name of the Queue to delete
   location = 'us-central1' // The GCP region in which to delete the queue
 ) {
+  // [START cloud_tasks_delete_queue]
   // Imports the Google Cloud Tasks library.
   const cloudTasks = require('@google-cloud/tasks');
 
   // Instantiates a client.
   const client = new cloudTasks.CloudTasksClient();
 
-  // Get the fully qualified path to the queue
-  const name = client.queuePath(project, location, queue);
+  async function deleteQueue() {
+    // Get the fully qualified path to the queue
+    const name = client.queuePath(project, location, queue);
 
-  // Send delete queue request.
-  await client.deleteQueue({name});
-  console.log(`Deleted queue '${queue}'.`);
+    // Send delete queue request.
+    await client.deleteQueue({name});
+    console.log(`Deleted queue '${queue}'.`);
+  }
+  deleteQueue();
+  // [END cloud_tasks_delete_queue]
 }
-// [END cloud_tasks_delete_queue]
 
-const args = process.argv.slice(2);
-deleteQueue(...args).catch(console.error);
+process.on('unhandledRejection', err => {
+  console.error(err.message);
+  process.exitCode = 1;
+});
+
+main(...process.argv.slice(2));
diff --git a/cloud-tasks/listQueues.js b/cloud-tasks/listQueues.js
index b4f23fdba9..8f14a7f6f8 100644
--- a/cloud-tasks/listQueues.js
+++ b/cloud-tasks/listQueues.js
@@ -14,33 +14,40 @@
 
 'use strict';
 
-// [START cloud_tasks_list_queues]
-async function listQueues(
+function main(
   project = 'my-project-id', // Your GCP Project id
   location = 'us-central1' // The GCP region to search for queues
 ) {
+  // [START cloud_tasks_list_queues]
   // Imports the Google Cloud Tasks library.
   const cloudTasks = require('@google-cloud/tasks');
 
   // Instantiates a client.
   const client = new cloudTasks.CloudTasksClient();
 
-  // Get the fully qualified path to the region
-  const parent = client.locationPath(project, location);
+  async function listQueues() {
+    // Get the fully qualified path to the region
+    const parent = client.locationPath(project, location);
 
-  // list all fo the queues
-  const [queues] = await client.listQueues({parent});
+    // list all fo the queues
+    const [queues] = await client.listQueues({parent});
 
-  if (queues.length > 0) {
-    console.log('Queues:');
-    queues.forEach(queue => {
-      console.log(`  ${queue.name}`);
-    });
-  } else {
-    console.log('No queues found!');
+    if (queues.length > 0) {
+      console.log('Queues:');
+      queues.forEach(queue => {
+        console.log(`  ${queue.name}`);
+      });
+    } else {
+      console.log('No queues found!');
+    }
   }
+  listQueues();
+  // [END cloud_tasks_list_queues]
 }
-// [END cloud_tasks_list_queues]
 
-const args = process.argv.slice(2);
-listQueues(...args).catch(console.error);
+process.on('unhandledRejection', err => {
+  console.error(err.message);
+  process.exitCode = 1;
+});
+
+main(...process.argv.slice(2));
diff --git a/cloud-tasks/package.json b/cloud-tasks/package.json
index 6890311b90..7e9981e3e1 100644
--- a/cloud-tasks/package.json
+++ b/cloud-tasks/package.json
@@ -17,8 +17,7 @@
   "dependencies": {
     "@google-cloud/tasks": "^2.1.1",
     "body-parser": "^1.18.3",
-    "express": "^4.16.3",
-    "yargs": "^16.0.0"
+    "express": "^4.16.3"
   },
   "devDependencies": {
     "chai": "^4.2.0",
diff --git a/cloud-tasks/quickstart.js b/cloud-tasks/quickstart.js
index 88bb0372f2..c36fda6035 100644
--- a/cloud-tasks/quickstart.js
+++ b/cloud-tasks/quickstart.js
@@ -13,12 +13,11 @@
 // limitations under the License.
 
 'use strict';
-/*eslint no-warning-comments: [0, { "terms": ["todo", "fixme"], "location": "anywhere" }]*/
 
 /**
  * Create a task for a given queue with an arbitrary payload.
  */
-async function createTask(project, location, queue, payload, inSeconds) {
+function main(project, location, queue, payload, inSeconds) {
   // [START tasks_quickstart]
   // Imports the Google Cloud Tasks library.
   const {CloudTasksClient} = require('@google-cloud/tasks');
@@ -26,45 +25,52 @@ async function createTask(project, location, queue, payload, inSeconds) {
   // Instantiates a client.
   const client = new CloudTasksClient();
 
-  // TODO(developer): Uncomment these lines and replace with your values.
-  // const project = 'my-project-id';
-  // const queue = 'my-appengine-queue';
-  // const location = 'us-central1';
-  // const payload = 'hello';
+  async function quickstart() {
+    // TODO(developer): Uncomment these lines and replace with your values.
+    // const project = 'my-project-id';
+    // const queue = 'my-appengine-queue';
+    // const location = 'us-central1';
+    // const payload = 'hello';
 
-  // Construct the fully qualified queue name.
-  const parent = client.queuePath(project, location, queue);
+    // Construct the fully qualified queue name.
+    const parent = client.queuePath(project, location, queue);
 
-  const task = {
-    appEngineHttpRequest: {
-      httpMethod: 'POST',
-      relativeUri: '/log_payload',
-    },
-  };
-
-  if (payload) {
-    task.appEngineHttpRequest.body = Buffer.from(payload).toString('base64');
-  }
-
-  if (inSeconds) {
-    task.scheduleTime = {
-      seconds: inSeconds + Date.now() / 1000,
+    const task = {
+      appEngineHttpRequest: {
+        httpMethod: 'POST',
+        relativeUri: '/log_payload',
+      },
     };
-  }
 
-  const request = {
-    parent: parent,
-    task: task,
-  };
+    if (payload) {
+      task.appEngineHttpRequest.body = Buffer.from(payload).toString('base64');
+    }
 
-  console.log('Sending task:');
-  console.log(task);
-  // Send create task request.
-  const [response] = await client.createTask(request);
-  const name = response.name;
-  console.log(`Created task ${name}`);
+    if (inSeconds) {
+      task.scheduleTime = {
+        seconds: inSeconds + Date.now() / 1000,
+      };
+    }
 
+    const request = {
+      parent: parent,
+      task: task,
+    };
+
+    console.log('Sending task:');
+    console.log(task);
+    // Send create task request.
+    const [response] = await client.createTask(request);
+    const name = response.name;
+    console.log(`Created task ${name}`);
+  }
+  quickstart();
   // [END tasks_quickstart]
 }
 
-createTask(...process.argv.slice(2)).catch(console.error);
+process.on('unhandledRejection', err => {
+  console.error(err.message);
+  process.exitCode = 1;
+});
+
+main(...process.argv.slice(2));