private com.google.protobuf.RepeatedFieldBuilderV3<
            com.google.cloud.vision.v1.EntityAnnotation,
            com.google.cloud.vision.v1.EntityAnnotation.Builder,
            com.google.cloud.vision.v1.EntityAnnotationOrBuilder>
        getLabelAnnotationsFieldBuilder() {
      if (labelAnnotationsBuilder_ == null) {
        labelAnnotationsBuilder_ =
            new com.google.protobuf.RepeatedFieldBuilderV3<
                com.google.cloud.vision.v1.EntityAnnotation,
                com.google.cloud.vision.v1.EntityAnnotation.Builder,
                com.google.cloud.vision.v1.EntityAnnotationOrBuilder>(
                labelAnnotations_,
                ((bitField0_ & 0x00000008) != 0),
                getParentForChildren(),
                isClean());
        labelAnnotations_ = null;
      }
      return labelAnnotationsBuilder_;
    }
<pre>
If present, label detection has completed successfully.
</pre>

<code>repeated .google.cloud.vision.v1.EntityAnnotation label_annotations = 4;</code>
java-vision/proto-google-cloud-vision-v1/src/main/java/com/google/cloud/vision/v1/AnnotateImageResponse.java