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

    size = 0;
    if (!com.google.protobuf.GeneratedMessageV3.isStringEmpty(inputUri_)) {
      size += com.google.protobuf.GeneratedMessageV3.computeStringSize(1, inputUri_);
    }
    if (progressPercent_ != 0) {
      size += com.google.protobuf.CodedOutputStream.computeInt32Size(2, progressPercent_);
    }
    if (((bitField0_ & 0x00000001) != 0)) {
      size += com.google.protobuf.CodedOutputStream.computeMessageSize(3, getStartTime());
    }
    if (((bitField0_ & 0x00000002) != 0)) {
      size += com.google.protobuf.CodedOutputStream.computeMessageSize(4, getUpdateTime());
    }
    size += getUnknownFields().getSerializedSize();
    memoizedSize = size;
    return size;
  }
<pre>
Time of the most recent update.
</pre>

<code>.google.protobuf.Timestamp update_time = 4;</code>
java-video-intelligence/proto-google-cloud-video-intelligence-v1beta2/src/main/java/com/google/cloud/videointelligence/v1beta2/VideoAnnotationProgress.java