text: // Copyright 2021 Google LLC
  //
  // 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.
  
  'use strict';
  
  function main(name) {
    // [START dialogflow_v3beta1_generated_Flows_TrainFlow_async]
    /**
     * TODO(developer): Uncomment these variables before running the sample.
     */
    /**
     *  Required. The flow to train.
     *  Format: `projects/<Project ID>/locations/<Location ID>/agents/<Agent
     *  ID>/flows/<Flow ID>`.
     */
    // const name = 'abc123'
  
    // Imports the Cx library
    const {FlowsClient} = require('@google-cloud/dialogflow-cx').v3beta1;
  
    // Instantiates a client
    const cxClient = new FlowsClient();
  
    async function trainFlow() {
      // Construct request
      const request = {
        name,
      };
  
      // Run request
      const [operation] = await cxClient.trainFlow(request);
      const [response] = await operation.promise();
      console.log(response);
    }
  
    trainFlow();
    // [END dialogflow_v3beta1_generated_Flows_TrainFlow_async]
  }
  
  process.on('unhandledRejection', err => {
    console.error(err.message);
    process.exitCode = 1;
  });
  main(...process.argv.slice(2));
  