@Override
  protected void prepareBuffer() {
    super.prepareBuffer();
    bufferToSend.writeShort(VERSION_V1);
    bufferToSend.writeShort((short) requestTypeToControl.ordinal());
    bufferToSend.writeByte(enable ? (byte) 1 : 0);
  }
@return if {@link #getRequestTypeToControl()} needs to enabled ({@code true}) or disabled ({@code false}).
ambry-protocol/src/main/java/com/github/ambry/protocol/RequestControlAdminRequest.java