code: func NewUploader(ctx context.Context, client *isolatedclient.Client, maxConcurrent int) *ConcurrentUploader {
  	return newUploader(ctx, client, maxConcurrent)
  }
docs: // NewUploader creates a new ConcurrentUploader with the given isolated client.
  // maxConcurrent controls maximum number of uploads to be in-flight at once.
  // The provided context is used to make all requests to the isolate server.