@java.lang.Override
  public int getSerializedSize() {
    int size = memoizedSize;
    if (size != -1) return size;

    size = 0;
    if (((bitField0_ & 0x00000001) != 0)) {
      size += com.google.protobuf.CodedOutputStream.computeMessageSize(1, getCurrentTime());
    }
    for (int i = 0; i < identifiedBoxes_.size(); i++) {
      size += com.google.protobuf.CodedOutputStream.computeMessageSize(2, identifiedBoxes_.get(i));
    }
    if (((bitField0_ & 0x00000002) != 0)) {
      size += com.google.protobuf.CodedOutputStream.computeMessageSize(3, getStats());
    }
    for (int i = 0; i < trackInfo_.size(); i++) {
      size += com.google.protobuf.CodedOutputStream.computeMessageSize(4, trackInfo_.get(i));
    }
    for (int i = 0; i < dwellTimeInfo_.size(); i++) {
      size += com.google.protobuf.CodedOutputStream.computeMessageSize(5, dwellTimeInfo_.get(i));
    }
    if (((bitField0_ & 0x00000004) != 0)) {
      size += com.google.protobuf.CodedOutputStream.computeInt64Size(6, pts_);
    }
    size += getUnknownFields().getSerializedSize();
    memoizedSize = size;
    return size;
  }
<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