public Builder clearSegment() {
      if (segmentBuilder_ == null) {
        if (trackInfoCase_ == 3) {
          trackInfoCase_ = 0;
          trackInfo_ = null;
          onChanged();
        }
      } else {
        if (trackInfoCase_ == 3) {
          trackInfoCase_ = 0;
          trackInfo_ = null;
        }
        segmentBuilder_.clear();
      }
      return this;
    }
<pre>
Non-streaming batch mode ONLY.
Each object track corresponds to one video segment where it appears.
</pre>

<code>.google.cloud.videointelligence.v1.VideoSegment segment = 3;</code>
java-video-intelligence/proto-google-cloud-video-intelligence-v1/src/main/java/com/google/cloud/videointelligence/v1/ObjectTrackingAnnotation.java