public UnaryCallSettings.Builder<AsyncBatchAnnotateFilesRequest, Operation>
        asyncBatchAnnotateFilesSettings() {
      return asyncBatchAnnotateFilesSettings;
    }
Returns the builder for the settings used for calls to asyncBatchAnnotateFiles.
java-vision/google-cloud-vision/src/main/java/com/google/cloud/vision/v1p4beta1/stub/ImageAnnotatorStubSettings.java