private void maybeForceBuilderInitialization() {
      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {
        getGcsDestinationFieldBuilder();
      }
    }
<pre>
The desired output location and metadata.
</pre>

Protobuf type {@code google.cloud.vision.v1.OutputConfig}
java-vision/proto-google-cloud-vision-v1/src/main/java/com/google/cloud/vision/v1/OutputConfig.java