private void maybeForceBuilderInitialization() {
      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {
        getFaceAnnotationsFieldBuilder();
        getLandmarkAnnotationsFieldBuilder();
        getLogoAnnotationsFieldBuilder();
        getLabelAnnotationsFieldBuilder();
        getLocalizedObjectAnnotationsFieldBuilder();
        getTextAnnotationsFieldBuilder();
        getFullTextAnnotationFieldBuilder();
        getSafeSearchAnnotationFieldBuilder();
        getImagePropertiesAnnotationFieldBuilder();
        getCropHintsAnnotationFieldBuilder();
        getWebDetectionFieldBuilder();
        getProductSearchResultsFieldBuilder();
        getErrorFieldBuilder();
        getContextFieldBuilder();
      }
    }
<pre>
Response to an image annotation request.
</pre>

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