How to use the dialogflow.v2beta1 function in dialogflow

async function detectIntentwithTexttoSpeechResponse(
  projectId,
  sessionId,
  query,
  languageCode,
  outputFile
) {
  // [START dialogflow_detect_intent_with_texttospeech_response]
  // Imports the Dialogflow client library
  const dialogflow = require('dialogflow').v2beta1;

  // Instantiate a DialogFlow client.
  const sessionClient = new dialogflow.SessionsClient();

  /**
   * TODO(developer): Uncomment the following lines before running the sample.
   */
  // const projectId = 'ID of GCP project associated with your Dialogflow agent';
  // const sessionId = `user specific ID of session, e.g. 12345`;
  // const query = `phrase(s) to pass to detect, e.g. I'd like to reserve a room for six people`;
  // const languageCode = 'BCP-47 language code, e.g. en-US';
  // const outputFile = `path for audio output file, e.g. ./resources/myOutput.wav`;

  // Define session path
  const sessionPath = sessionClient.sessionPath(projectId, sessionId);
  const fs = require(`fs`);

async function createDocument(
  projectId,
  knowledgeBaseFullName,
  documentPath,
  documentName,
  knowledgeTypes,
  mimeType
) {
  // [START dialogflow_create_document]
  // Imports the Dialogflow client library
  const dialogflow = require('dialogflow').v2beta1;

  // Instantiate a DialogFlow Documents client.
  const client = new dialogflow.DocumentsClient({
    projectId: projectId,
  });

  /**
   * TODO(developer): Uncomment the following lines before running the sample.
   */
  // const projectId = 'ID of GCP project associated with your Dialogflow agent';
  // const knowledgeBaseFullName = `the full path of your knowledge base, e.g my-Gcloud-project/myKnowledgeBase`;
  // const documentPath = `path of the document you'd like to add, e.g. https://dialogflow.com/docs/knowledge-connectors`;
  // const documentName = `displayed name of your document in knowledge base, e.g. myDoc`;
  // const knowledgeTypes = `The Knowledge type of the Document. e.g. FAQ`;
  // const mimeType = `The mime_type of the Document. e.g. text/csv, text/html,text/plain, text/pdf etc.`;

async function createKnowledgeBase(projectId, displayName) {
  // [START dialogflow_create_knowledge_base]
  // Imports the Dialogflow client library
  const dialogflow = require('dialogflow').v2beta1;

  // Instantiate a DialogFlow client.
  const client = new dialogflow.KnowledgeBasesClient();

  /**
   * TODO(developer): Uncomment the following lines before running the sample.
   */
  // const projectId = 'ID of GCP project associated with your Dialogflow agent';
  // const displayName = `your knowledge base display name, e.g. myKnowledgeBase`;

  const formattedParent = client.projectPath(projectId);
  const knowledgeBase = {
    displayName: displayName,
  };
  const request = {
    parent: formattedParent,

async function detectIntentwithModelSelection(
  projectId,
  sessionId,
  audioFilePath,
  languageCode,
  model
) {
  // [START dialogflow_detect_intent_with_model_selection]
  const fs = require('fs');

  // Imports the Dialogflow client library
  const dialogflow = require('dialogflow').v2beta1;

  // Instantiate a DialogFlow client.
  const sessionClient = new dialogflow.SessionsClient();

  /**
   * TODO(developer): Uncomment the following lines before running the sample.
   */
  // const projectId = 'ID of GCP project associated with your Dialogflow agent';
  // const sessionId = `user specific ID of session, e.g. 12345`;
  // const audioFilePath = `path to local audio file, e.g. ./resources/book_a_room.wav`;
  // const languageCode = 'BCP-47 language code, e.g. en-US';
  // const model = `speech mode selected for given request, e.g. video, phone_call, command_and_search, default`;

  // Define session path
  const sessionPath = sessionClient.sessionPath(projectId, sessionId);
  // Read the content of the audio file and send it as part of the request.

async function detectIntentKnowledge(
  projectId,
  sessionId,
  languageCode,
  knowledgeBaseFullName,
  query
) {
  // [START dialogflow_detect_intent_knowledge]
  // Imports the Dialogflow client library
  const dialogflow = require('dialogflow').v2beta1;

  // Instantiate a DialogFlow client.
  const sessionClient = new dialogflow.SessionsClient();

  /**
   * TODO(developer): Uncomment the following lines before running the sample.
   */
  // const projectId = 'ID of GCP project associated with your Dialogflow agent';
  // const sessionId = `user specific ID of session, e.g. 12345`;
  // const languageCode = 'BCP-47 language code, e.g. en-US';
  // const knowledgeBaseFullName = `the full path of your knowledge base, e.g my-Gcloud-project/myKnowledgeBase`;
  // const query = `phrase(s) to pass to detect, e.g. I'd like to reserve a room for six people`;

  // Define session path
  const sessionPath = sessionClient.sessionPath(projectId, sessionId);
  const knowbase = new dialogflow.KnowledgeBasesClient();