diff --git a/generative-ai/snippets/test/countTokens.test.js b/generative-ai/snippets/test/countTokens.test.js
index 9cae763dba..027151d3f2 100644
--- a/generative-ai/snippets/test/countTokens.test.js
+++ b/generative-ai/snippets/test/countTokens.test.js
@@ -17,17 +17,24 @@
 const {assert} = require('chai');
 const {describe, it} = require('mocha');
 const cp = require('child_process');
-
 const execSync = cmd => cp.execSync(cmd, {encoding: 'utf-8'});
 
+const projectId = process.env.CAIP_PROJECT_ID;
+const location = process.env.LOCATION;
+const model = 'gemini-1.0-pro';
+
 describe('Count tokens', async () => {
-  const project = 'cloud-llm-preview1';
-  const location = 'us-central1';
-  const model = 'gemini-1.0-pro';
+  /**
+   * TODO(developer): Uncomment these variables before running the sample.\
+   * (Not necessary if passing values as arguments)
+   */
+  // const projectId = 'YOUR_PROJECT_ID';
+  // const location = 'YOUR_LOCATION';
+  // const model = 'gemini-1.0-pro';
 
   it('should count tokens', async () => {
     const output = execSync(
-      `node ./countTokens.js ${project} ${location} ${model}`
+      `node ./countTokens.js ${projectId} ${location} ${model}`
     );
 
     // Expect 6 tokens
diff --git a/generative-ai/snippets/test/functionCallingStreamChat.test.js b/generative-ai/snippets/test/functionCallingStreamChat.test.js
index 00439a3d04..385d4efb3b 100644
--- a/generative-ai/snippets/test/functionCallingStreamChat.test.js
+++ b/generative-ai/snippets/test/functionCallingStreamChat.test.js
@@ -17,17 +17,24 @@
 const {assert} = require('chai');
 const {describe, it} = require('mocha');
 const cp = require('child_process');
-
 const execSync = cmd => cp.execSync(cmd, {encoding: 'utf-8'});
 
+const projectId = process.env.CAIP_PROJECT_ID;
+const location = process.env.LOCATION;
+const model = 'gemini-1.0-pro';
+
 describe('Generative AI Function Calling Stream Chat', () => {
-  const project = 'cloud-llm-preview1';
-  const location = 'us-central1';
-  const model = 'gemini-1.0-pro';
+  /**
+   * TODO(developer): Uncomment these variables before running the sample.\
+   * (Not necessary if passing values as arguments)
+   */
+  // const projectId = 'YOUR_PROJECT_ID';
+  // const location = 'YOUR_LOCATION';
+  // const model = 'gemini-1.0-pro';
 
   it('should create stream chat and begin the conversation the same in each instance', async () => {
     const output = execSync(
-      `node ./functionCallingStreamChat.js ${project} ${location} ${model}`
+      `node ./functionCallingStreamChat.js ${projectId} ${location} ${model}`
     );
 
     // Assert that the response is what we expect
diff --git a/generative-ai/snippets/test/functionCallingStreamContent.test.js b/generative-ai/snippets/test/functionCallingStreamContent.test.js
index 7524a7493e..5b24f8e609 100644
--- a/generative-ai/snippets/test/functionCallingStreamContent.test.js
+++ b/generative-ai/snippets/test/functionCallingStreamContent.test.js
@@ -17,17 +17,24 @@
 const {assert} = require('chai');
 const {describe, it} = require('mocha');
 const cp = require('child_process');
-
 const execSync = cmd => cp.execSync(cmd, {encoding: 'utf-8'});
 
+const projectId = process.env.CAIP_PROJECT_ID;
+const location = process.env.LOCATION;
+const model = 'gemini-1.0-pro';
+
 describe('Generative AI Function Calling Stream Content', () => {
-  const project = 'cloud-llm-preview1';
-  const location = 'us-central1';
-  const model = 'gemini-1.0-pro';
+  /**
+   * TODO(developer): Uncomment these variables before running the sample.\
+   * (Not necessary if passing values as arguments)
+   */
+  // const projectId = 'YOUR_PROJECT_ID';
+  // const location = 'YOUR_LOCATION';
+  // const model = 'gemini-1.0-pro';
 
   it('should create stream chat and begin the conversation the same in each instance', async () => {
     const output = execSync(
-      `node ./functionCallingStreamContent.js ${project} ${location} ${model}`
+      `node ./functionCallingStreamContent.js ${projectId} ${location} ${model}`
     );
 
     // Assert that the response is what we expect
diff --git a/generative-ai/snippets/test/nonStreamingChat.test.js b/generative-ai/snippets/test/nonStreamingChat.test.js
index 9a6ccdc50b..73eea8fae4 100644
--- a/generative-ai/snippets/test/nonStreamingChat.test.js
+++ b/generative-ai/snippets/test/nonStreamingChat.test.js
@@ -17,22 +17,31 @@
 const {assert} = require('chai');
 const {describe, it} = require('mocha');
 const cp = require('child_process');
-
 const execSync = cmd => cp.execSync(cmd, {encoding: 'utf-8'});
 
+const projectId = process.env.CAIP_PROJECT_ID;
+const location = process.env.LOCATION;
+const model = 'gemini-1.0-pro';
+
 describe('Generative AI NonStreaming Chat', async () => {
-  const project = 'cloud-llm-preview1';
-  const location = 'us-central1';
-  const model = 'gemini-1.0-pro';
+  /**
+   * TODO(developer): Uncomment these variables before running the sample.\
+   * (Not necessary if passing values as arguments)
+   */
+  // const projectId = 'YOUR_PROJECT_ID';
+  // const location = 'YOUR_LOCATION';
+  // const model = 'gemini-1.0-pro';
 
-  it('should create nonstreaming chat and begin the conversation the same in each instance', async () => {
-    const output = execSync(
-      `node ./nonStreamingChat.js ${project} ${location} ${model}`
-    );
+  describe('Generative AI NonStreaming Chat', async () => {
+    it('should create nonstreaming chat and begin the conversation the same in each instance', async () => {
+      const output = execSync(
+        `node ./nonStreamingChat.js ${projectId} ${location} ${model}`
+      );
 
-    // Ensure that the beginning of the conversation is consistent
-    assert(output.match(/User: Hello/));
-    assert(output.match(/User: Can you tell me a scientific fun fact?/));
-    assert(output.match(/User: How can I learn more about that?/));
+      // Ensure that the beginning of the conversation is consistent
+      assert(output.match(/User: Hello/));
+      assert(output.match(/User: Can you tell me a scientific fun fact?/));
+      assert(output.match(/User: How can I learn more about that?/));
+    });
   });
 });
diff --git a/generative-ai/snippets/test/nonStreamingContent.test.js b/generative-ai/snippets/test/nonStreamingContent.test.js
index f0eab652cf..3c5b795a13 100644
--- a/generative-ai/snippets/test/nonStreamingContent.test.js
+++ b/generative-ai/snippets/test/nonStreamingContent.test.js
@@ -17,17 +17,24 @@
 const {assert} = require('chai');
 const {describe, it} = require('mocha');
 const cp = require('child_process');
-
 const execSync = cmd => cp.execSync(cmd, {encoding: 'utf-8'});
 
+const projectId = process.env.CAIP_PROJECT_ID;
+const location = process.env.LOCATION;
+const model = 'gemini-1.0-pro';
+
 describe('Generative AI NonStreaming Content', () => {
-  const project = 'cloud-llm-preview1';
-  const location = 'us-central1';
-  const model = 'gemini-1.0-pro';
+  /**
+   * TODO(developer): Uncomment these variables before running the sample.\
+   * (Not necessary if passing values as arguments)
+   */
+  // const projectId = 'YOUR_PROJECT_ID';
+  // const location = 'YOUR_LOCATION';
+  // const model = 'gemini-1.0-pro';
 
   it('should create nonstreaming content and begin the conversation the same in each instance', async () => {
     const output = execSync(
-      `node ./nonStreamingContent.js ${project} ${location} ${model}`
+      `node ./nonStreamingContent.js ${projectId} ${location} ${model}`
     );
 
     // Ensure that the beginning of the conversation is consistent
diff --git a/generative-ai/snippets/test/nonStreamingMultipartContent.test.js b/generative-ai/snippets/test/nonStreamingMultipartContent.test.js
index ecfeb2eae3..c48e11abe7 100644
--- a/generative-ai/snippets/test/nonStreamingMultipartContent.test.js
+++ b/generative-ai/snippets/test/nonStreamingMultipartContent.test.js
@@ -17,18 +17,26 @@
 const {assert} = require('chai');
 const {describe, it} = require('mocha');
 const cp = require('child_process');
-
 const execSync = cmd => cp.execSync(cmd, {encoding: 'utf-8'});
 
+const projectId = process.env.CAIP_PROJECT_ID;
+const location = process.env.LOCATION;
+const model = 'gemini-1.0-pro-vision';
+
 describe('Generative AI NonStreaming Multipart Content', () => {
-  const project = 'cloud-llm-preview1';
-  const location = 'us-central1';
-  const model = 'gemini-1.0-pro-vision';
+  /**
+   * TODO(developer): Uncomment these variables before running the sample.\
+   * (Not necessary if passing values as arguments)
+   */
+  // const projectId = 'YOUR_PROJECT_ID';
+  // const location = 'YOUR_LOCATION';
+  // const model = 'gemini-1.0-pro-vision';
+
   const image = 'gs://generativeai-downloads/images/scones.jpg';
 
   it('should create nonstreaming multipart content and begin the conversation the same in each instance', async () => {
     const output = execSync(
-      `node ./nonStreamingMultipartContent.js ${project} ${location} ${model} ${image}`
+      `node ./nonStreamingMultipartContent.js ${projectId} ${location} ${model} ${image}`
     );
 
     // Ensure that the conversation is what we expect for this scone image
diff --git a/generative-ai/snippets/test/safetySettings.test.js b/generative-ai/snippets/test/safetySettings.test.js
index 454ae29c58..046b0dfca1 100644
--- a/generative-ai/snippets/test/safetySettings.test.js
+++ b/generative-ai/snippets/test/safetySettings.test.js
@@ -17,17 +17,24 @@
 const {assert} = require('chai');
 const {describe, it} = require('mocha');
 const cp = require('child_process');
-
 const execSync = cmd => cp.execSync(cmd, {encoding: 'utf-8'});
 
+const projectId = process.env.CAIP_PROJECT_ID;
+const location = process.env.LOCATION;
+const model = 'gemini-1.0-pro';
+
 describe('Safety settings', async () => {
-  const project = 'cloud-llm-preview1';
-  const location = 'us-central1';
-  const model = 'gemini-1.0-pro';
+  /**
+   * TODO(developer): Uncomment these variables before running the sample.\
+   * (Not necessary if passing values as arguments)
+   */
+  // const projectId = 'YOUR_PROJECT_ID';
+  // const location = 'YOUR_LOCATION';
+  // const model = 'gemini-1.0-pro';
 
   it('should reject a dangerous request', async () => {
     const output = execSync(
-      `node ./safetySettings.js ${project} ${location} ${model}`
+      `node ./safetySettings.js ${projectId} ${location} ${model}`
     );
 
     // Expect rejection due to safety concerns
diff --git a/generative-ai/snippets/test/sendMultiModalPromptWithImage.test.js b/generative-ai/snippets/test/sendMultiModalPromptWithImage.test.js
index 91a951552b..37db1d2349 100644
--- a/generative-ai/snippets/test/sendMultiModalPromptWithImage.test.js
+++ b/generative-ai/snippets/test/sendMultiModalPromptWithImage.test.js
@@ -17,17 +17,24 @@
 const {assert} = require('chai');
 const {describe, it} = require('mocha');
 const cp = require('child_process');
-
 const execSync = cmd => cp.execSync(cmd, {encoding: 'utf-8'});
 
+const projectId = process.env.CAIP_PROJECT_ID;
+const location = process.env.LOCATION;
+const model = 'gemini-1.0-pro-vision';
+
 describe('Generative AI Stream MultiModal with Image', () => {
-  const project = 'cloud-llm-preview1';
-  const location = 'us-central1';
-  const model = 'gemini-1.0-pro-vision';
+  /**
+   * TODO(developer): Uncomment these variables before running the sample.\
+   * (Not necessary if passing values as arguments)
+   */
+  // const projectId = 'YOUR_PROJECT_ID';
+  // const location = 'YOUR_LOCATION';
+  // const model = 'gemini-1.0-pro-vision';
 
   it('should create stream multimodal content', async () => {
     const output = execSync(
-      `node ./sendMultiModalPromptWithImage.js ${project} ${location} ${model}`
+      `node ./sendMultiModalPromptWithImage.js ${projectId} ${location} ${model}`
     );
     // Ensure that the conversation is what we expect for these images
     assert(output.match(/city: Rio de Janeiro, Landmark: Christ the Redeemer/));
diff --git a/generative-ai/snippets/test/sendMultiModalPromptWithVideo.test.js b/generative-ai/snippets/test/sendMultiModalPromptWithVideo.test.js
index 3b7972890e..fc6f3090ac 100644
--- a/generative-ai/snippets/test/sendMultiModalPromptWithVideo.test.js
+++ b/generative-ai/snippets/test/sendMultiModalPromptWithVideo.test.js
@@ -17,17 +17,24 @@
 const {assert} = require('chai');
 const {describe, it} = require('mocha');
 const cp = require('child_process');
-
 const execSync = cmd => cp.execSync(cmd, {encoding: 'utf-8'});
 
+const projectId = process.env.CAIP_PROJECT_ID;
+const location = process.env.LOCATION;
+const model = 'gemini-1.0-pro-vision';
+
 describe('Generative AI Stream MultiModal with Video', () => {
-  const project = 'cloud-llm-preview1';
-  const location = 'us-central1';
-  const model = 'gemini-1.0-pro-vision';
+  /**
+   * TODO(developer): Uncomment these variables before running the sample.\
+   * (Not necessary if passing values as arguments)
+   */
+  // const projectId = 'YOUR_PROJECT_ID';
+  // const location = 'YOUR_LOCATION';
+  // const model = 'gemini-1.0-pro-vision';
 
   it('should create stream multimodal content', async () => {
     const output = execSync(
-      `node ./sendMultiModalPromptWithVideo.js ${project} ${location} ${model}`
+      `node ./sendMultiModalPromptWithVideo.js ${projectId} ${location} ${model}`
     );
     // Ensure that the conversation is what we expect for these images
     assert(output.match(/Zootopia/));
diff --git a/generative-ai/snippets/test/streamChat.test.js b/generative-ai/snippets/test/streamChat.test.js
index 1c9a128d6b..117a6dfe47 100644
--- a/generative-ai/snippets/test/streamChat.test.js
+++ b/generative-ai/snippets/test/streamChat.test.js
@@ -17,17 +17,24 @@
 const {assert} = require('chai');
 const {describe, it} = require('mocha');
 const cp = require('child_process');
-
 const execSync = cmd => cp.execSync(cmd, {encoding: 'utf-8'});
 
+const projectId = process.env.CAIP_PROJECT_ID;
+const location = process.env.LOCATION;
+const model = 'gemini-1.0-pro';
+
 describe('Generative AI Stream Chat', () => {
-  const project = 'cloud-llm-preview1';
-  const location = 'us-central1';
-  const model = 'gemini-1.0-pro';
+  /**
+   * TODO(developer): Uncomment these variables before running the sample.\
+   * (Not necessary if passing values as arguments)
+   */
+  // const projectId = 'YOUR_PROJECT_ID';
+  // const location = 'YOUR_LOCATION';
+  // const model = 'gemini-1.0-pro';
 
   it('should create stream chat and begin the conversation the same in each instance', async () => {
     const output = execSync(
-      `node ./streamChat.js ${project} ${location} ${model}`
+      `node ./streamChat.js ${projectId} ${location} ${model}`
     );
 
     // Assert that the advice given for learning is what we expect
diff --git a/generative-ai/snippets/test/streamContent.test.js b/generative-ai/snippets/test/streamContent.test.js
index 03a0f47676..3882905cb3 100644
--- a/generative-ai/snippets/test/streamContent.test.js
+++ b/generative-ai/snippets/test/streamContent.test.js
@@ -17,17 +17,24 @@
 const {assert} = require('chai');
 const {describe, it} = require('mocha');
 const cp = require('child_process');
-
 const execSync = cmd => cp.execSync(cmd, {encoding: 'utf-8'});
 
+const projectId = process.env.CAIP_PROJECT_ID;
+const location = process.env.LOCATION;
+const model = 'gemini-1.0-pro';
+
 describe('Generative AI Stream Content', () => {
-  const project = 'cloud-llm-preview1';
-  const location = 'us-central1';
-  const model = 'gemini-1.0-pro';
+  /**
+   * TODO(developer): Uncomment these variables before running the sample.\
+   * (Not necessary if passing values as arguments)
+   */
+  // const projectId = 'YOUR_PROJECT_ID';
+  // const location = 'YOUR_LOCATION';
+  // const model = 'gemini-1.0-pro';
 
   it('should create stream content', async () => {
     const output = execSync(
-      `node ./streamContent.js ${project} ${location} ${model}`
+      `node ./streamContent.js ${projectId} ${location} ${model}`
     );
     // Ensure that the beginning of the conversation is consistent
     assert(output.match(/Prompt:/));
diff --git a/generative-ai/snippets/test/streamMultipartContent.test.js b/generative-ai/snippets/test/streamMultipartContent.test.js
index 06153467d8..14ef562e71 100644
--- a/generative-ai/snippets/test/streamMultipartContent.test.js
+++ b/generative-ai/snippets/test/streamMultipartContent.test.js
@@ -17,18 +17,26 @@
 const {assert} = require('chai');
 const {describe, it} = require('mocha');
 const cp = require('child_process');
-
 const execSync = cmd => cp.execSync(cmd, {encoding: 'utf-8'});
 
+const projectId = process.env.CAIP_PROJECT_ID;
+const location = process.env.LOCATION;
+const model = 'gemini-1.0-pro-vision';
+
 describe('Generative AI Stream Multipart Content', () => {
-  const project = 'cloud-llm-preview1';
-  const location = 'us-central1';
-  const model = 'gemini-1.0-pro-vision';
+  /**
+   * TODO(developer): Uncomment these variables before running the sample.\
+   * (Not necessary if passing values as arguments)
+   */
+  // const projectId = 'YOUR_PROJECT_ID';
+  // const location = 'YOUR_LOCATION';
+  // const model = 'gemini-1.0-pro-vision';
+
   const image = 'gs://generativeai-downloads/images/scones.jpg';
 
   it('should create stream multipart content', async () => {
     const output = execSync(
-      `node ./streamMultipartContent.js ${project} ${location} ${model} ${image}`
+      `node ./streamMultipartContent.js ${projectId} ${location} ${model} ${image}`
     );
     // Split up conversation output
     const conversation = output.split('\n');