private void ensureAnnotationResultsIsMutable() {
      if (!((bitField0_ & 0x00000001) != 0)) {
        annotationResults_ =
            new java.util.ArrayList<
                com.google.cloud.videointelligence.v1p1beta1.VideoAnnotationResults>(
                annotationResults_);
        bitField0_ |= 0x00000001;
      }
    }
<pre>
Video annotation response. Included in the `response`
field of the `Operation` returned by the `GetOperation`
call of the `google::longrunning::Operations` service.
</pre>

Protobuf type {@code google.cloud.videointelligence.v1p1beta1.AnnotateVideoResponse}
java-video-intelligence/proto-google-cloud-video-intelligence-v1p1beta1/src/main/java/com/google/cloud/videointelligence/v1p1beta1/AnnotateVideoResponse.java