How to use the @google-cloud/vision.v1p3beta1 function in @google-cloud/vision

async function detectHandwritingGCS(uri) {
  // [START vision_handwritten_ocr_gcs_beta]
  // Imports the Google Cloud client libraries
  const vision = require('@google-cloud/vision').v1p3beta1;
  const fs = require('fs');

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

  /**
   * TODO(developer): Uncomment the following line before running the sample.
   */
  // const uri = `gs://bucket/bucketImage.png`;

  const request = {
    image: {
      content: fs.readFileSync(uri),
    },
    feature: {
      languageHints: ['en-t-i0-handwrit'],