public Builder setTrackInfo(
        int index,
        com.google.cloud.visionai.v1.OccupancyCountingPredictionResult.TrackInfo.Builder
            builderForValue) {
      if (trackInfoBuilder_ == null) {
        ensureTrackInfoIsMutable();
        trackInfo_.set(index, builderForValue.build());
        onChanged();
      } else {
        trackInfoBuilder_.setMessage(index, builderForValue.build());
      }
      return this;
    }
<pre>
Track related information. All the tracks that are live at this timestamp.
It only exists if tracking is enabled.
</pre>

<code>
repeated .google.cloud.visionai.v1.OccupancyCountingPredictionResult.TrackInfo track_info = 4;
</code>
java-visionai/proto-google-cloud-visionai-v1/src/main/java/com/google/cloud/visionai/v1/OccupancyCountingPredictionResult.java