private void ensureSegmentLabelAnnotationsIsMutable() {
      if (!((bitField0_ & 0x00000004) != 0)) {
        segmentLabelAnnotations_ =
            new java.util.ArrayList<com.google.cloud.videointelligence.v1.LabelAnnotation>(
                segmentLabelAnnotations_);
        bitField0_ |= 0x00000004;
      }
    }
<pre>
Video segment on which the annotation is run.
</pre>

<code>.google.cloud.videointelligence.v1.VideoSegment segment = 10;</code>
java-video-intelligence/proto-google-cloud-video-intelligence-v1/src/main/java/com/google/cloud/videointelligence/v1/VideoAnnotationResults.java