Convert a JSON object into a message.

    Args:
      value: A JSON object.
      message: A WKT or regular protocol message to record the data.

    Raises:
      ParseError: In case of convert problems.

def ConvertMessage(self, value, message):
    """Convert a JSON object into a message.

    Args:
      value: A JSON object.
      message: A WKT or regular protocol message to record the data.

    Raises:
      ParseError: In case of convert problems.
    """
    message_descriptor = message.DESCRIPTOR
    full_name = message_descriptor.full_name
    if _IsWrapperMessage(message_descriptor):
      self._ConvertWrapperMessage(value, message)
    elif full_name in _WKTJSONMETHODS:
      methodcaller(_WKTJSONMETHODS[full_name][1], value, message)(self)
    else:
      self._ConvertFieldValuePair(value, message)