public Builder mergeFrom(com.google.cloud.videointelligence.v1p3beta1.CelebrityTrack other) {
      if (other == com.google.cloud.videointelligence.v1p3beta1.CelebrityTrack.getDefaultInstance())
        return this;
      if (celebritiesBuilder_ == null) {
        if (!other.celebrities_.isEmpty()) {
          if (celebrities_.isEmpty()) {
            celebrities_ = other.celebrities_;
            bitField0_ = (bitField0_ & ~0x00000001);
          } else {
            ensureCelebritiesIsMutable();
            celebrities_.addAll(other.celebrities_);
          }
          onChanged();
        }
      } else {
        if (!other.celebrities_.isEmpty()) {
          if (celebritiesBuilder_.isEmpty()) {
            celebritiesBuilder_.dispose();
            celebritiesBuilder_ = null;
            celebrities_ = other.celebrities_;
            bitField0_ = (bitField0_ & ~0x00000001);
            celebritiesBuilder_ =
                com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders
                    ? getCelebritiesFieldBuilder()
                    : null;
          } else {
            celebritiesBuilder_.addAllMessages(other.celebrities_);
          }
        }
      }
      if (other.hasFaceTrack()) {
        mergeFaceTrack(other.getFaceTrack());
      }
      this.mergeUnknownFields(other.getUnknownFields());
      onChanged();
      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