@java.lang.Override
  public void writeTo(com.google.protobuf.CodedOutputStream output)
                      throws java.io.IOException {
    if (elapsedMs_ != 0L) {
      output.writeInt64(1, elapsedMs_);
    }
    getUnknownFields().writeTo(output);
  }
@java.lang.Override
  public void writeTo(com.google.protobuf.CodedOutputStream output)