@java.lang.Override
  public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
    if (((bitField0_ & 0x00000001) != 0)) {
      output.writeMessage(1, getCurrentTime());
    }
    for (int i = 0; i < identifiedBoxes_.size(); i++) {
      output.writeMessage(2, identifiedBoxes_.get(i));
    }
    if (((bitField0_ & 0x00000002) != 0)) {
      output.writeMessage(3, getStats());
    }
    for (int i = 0; i < trackInfo_.size(); i++) {
      output.writeMessage(4, trackInfo_.get(i));
    }
    for (int i = 0; i < dwellTimeInfo_.size(); i++) {
      output.writeMessage(5, dwellTimeInfo_.get(i));
    }
    if (((bitField0_ & 0x00000004) != 0)) {
      output.writeInt64(6, pts_);
    }
    getUnknownFields().writeTo(output);
  }
<pre>
The presentation timestamp of the frame.
</pre>

<code>optional int64 pts = 6;</code>

@return The pts.
java-visionai/proto-google-cloud-visionai-v1/src/main/java/com/google/cloud/visionai/v1/OccupancyCountingPredictionResult.java