问云函数可以从云存储中读取吗？

EN

var storage = require('@google-cloud/storage');
  const gcs = storage({projectId: "<your_project>"});
  const bucket = gcs.bucket("<your_bucket>");
  const file = bucket.file("<path/to/your_file>")
    
  exports.gcstest = (event, callback) => {
    file.download({destination:"/tmp/test"}, function(err, file) {
      if (err) {console.log(err)}
        else{callback();}
    })
  };

const storage = require('@google-cloud/storage')();
const myBucket = storage.bucket('my-bucket');
const file = myBucket.file('my-file');

file.createReadStream().on('data', () => {
    // do something!
});