function main(arg1 = 'default_value_one', arg2 = 1234) {
  // [START your_region_tag]
  /**
   * TODO(developer): Uncomment these variables before running the sample.
   */
  // const arg1 = 'default_value_one';
  // const arg2 = 1234;

  // Imports the Google Cloud Some API library
  const {SomeApiClient} = require('@google-cloud/some-api');

  // Instantiates a client
  const someApiClient = new SomeApiClient();

  async function doSomething() {
    // Construct request
    const request = {
      value1: arg1,
      value2: arg2,
      value3: 'hard-coded value',
    };

    const [response] = await someApiClient.doSomething(request);

    ...
  }

  doSomething();
  // [END your_region_tag]
}

main(...process.argv.slice(2));