private void ensureFrameLabelAnnotationsIsMutable() {
      if (!((bitField0_ & 0x00000008) != 0)) {
        frameLabelAnnotations_ =
            new java.util.ArrayList<com.google.cloud.videointelligence.v1beta2.LabelAnnotation>(
                frameLabelAnnotations_);
        bitField0_ |= 0x00000008;
      }
    }
<pre>
Label annotations on shot level.
There is exactly one element for each unique label.
</pre>

<code>
repeated .google.cloud.videointelligence.v1beta2.LabelAnnotation shot_label_annotations = 3;
</code>
java-video-intelligence/proto-google-cloud-video-intelligence-v1beta2/src/main/java/com/google/cloud/videointelligence/v1beta2/VideoAnnotationResults.java