deleteMessageByIds method
~english Deletes messages with message ids.
Param messageIds  The list of message ids.
Throws A description of the exception. See ChatError. ~end
~chinese 根据时间删除本地消息。
Param messageIds 指定的消息id列表。
Throws 如果有异常会在这里抛出,包含错误码和错误描述,详见 ChatError。 ~end
Implementation
Future<void> deleteMessageByIds(List<String> messageIds) async {
  Map req = this._toJson();
  req['messageIds'] = messageIds;
  Map result = await _emConversationChannel.invokeMethod(
      ChatMethodKeys.deleteMessageByIds, req);
  try {
    ChatError.hasErrorFromResult(result);
  } on ChatError catch (e) {
    throw e;
  }
}