How to use the @google-cloud/vision.v1p4beta1 function in @google-cloud/vision

async function main(fileName) {
  // [START vision_batch_annotate_files_beta]
  // Imports the Google Cloud client libraries
  const {ImageAnnotatorClient} = require('@google-cloud/vision').v1p4beta1;
  const fs = require('fs');
  const {promisify} = require('util');
  const readFileAsync = promisify(fs.readFile);

  // Creates a client
  const client = new ImageAnnotatorClient();

  /**
   * TODO(developer): Uncomment the following line before running the sample.
   */
  // const fileName = `/path/to/localDocument.pdf`;

  const inputConfig = {
    // Other supported mime_types: image/tiff' or 'image/gif'
    mimeType: 'application/pdf',
    content: await readFileAsync(fileName),

async function main(inputImageUri, outputUri) {
  // [START vision_async_batch_annotate_images_beta]

  // Imports the Google Cloud client libraries
  const {ImageAnnotatorClient} = require('@google-cloud/vision').v1p4beta1;

  // Creates a client
  const client = new ImageAnnotatorClient();

  /**
   * TODO(developer): Uncomment the following lines before running the sample.
   */
  // GCS path where the image resides
  // const inputImageUri = 'gs://my-bucket/my_image.jpg';
  // GCS path where to store the output json
  // const outputUri = 'gs://mybucket/out/'

  const features = [
    {type: 'DOCUMENT_LABEL_DETECTION'},
    {type: 'DOCUMENT_TEXT_DETECTION'},
    {type: 'DOCUMENT_IMAGE_DETECTION'},

async function main(gcsSourceUri) {
  // [START vision_batch_annotate_files_gcs_beta]
  // Imports the Google Cloud client libraries
  const {ImageAnnotatorClient} = require('@google-cloud/vision').v1p4beta1;

  // Creates a client
  const client = new ImageAnnotatorClient();

  /**
   * TODO(developer): Uncomment the following line before running the sample.
   */
  // GCS path where the pdf file resides
  // const gcsSourceUri = 'gs://my-bucket/my_pdf.pdf';

  const inputConfig = {
    // Supported mime_types are: 'application/pdf' and 'image/tiff'
    mimeType: 'application/pdf',
    gcsSource: {
      uri: gcsSourceUri,
    },