public com.google.cloud.videointelligence.v1.ObjectTrackingConfigOrBuilder
        getObjectTrackingConfigOrBuilder() {
      if (objectTrackingConfigBuilder_ != null) {
        return objectTrackingConfigBuilder_.getMessageOrBuilder();
      } else {
        return objectTrackingConfig_ == null
            ? com.google.cloud.videointelligence.v1.ObjectTrackingConfig.getDefaultInstance()
            : objectTrackingConfig_;
      }
    }
<pre>
Config for OBJECT_TRACKING.
</pre>

<code>.google.cloud.videointelligence.v1.ObjectTrackingConfig object_tracking_config = 13;
</code>
java-video-intelligence/proto-google-cloud-video-intelligence-v1/src/main/java/com/google/cloud/videointelligence/v1/VideoContext.java