@java.lang.Override
    public Builder clear() {
      super.clear();
      bitField0_ = 0;
      if (celebritiesBuilder_ == null) {
        celebrities_ = java.util.Collections.emptyList();
      } else {
        celebrities_ = null;
        celebritiesBuilder_.clear();
      }
      bitField0_ = (bitField0_ & ~0x00000001);
      faceTrack_ = null;
      if (faceTrackBuilder_ != null) {
        faceTrackBuilder_.dispose();
        faceTrackBuilder_ = null;
      }
      return this;
    }
<pre>
The annotation result of a celebrity face track. RecognizedCelebrity field
could be empty if the face track does not have any matched celebrities.
</pre>

Protobuf type {@code google.cloud.videointelligence.v1p3beta1.CelebrityTrack}
java-video-intelligence/proto-google-cloud-video-intelligence-v1p3beta1/src/main/java/com/google/cloud/videointelligence/v1p3beta1/CelebrityTrack.java