removeChatRoomAdmin method
~english Removes privileges of a chat room admin.
Param roomId The chat room ID.
Param admin The ID of admin whose privileges are to be removed.
Throws A description of the exception. See ChatError.
~end
~chinese 移除聊天室管理员权限。
Param roomId 聊天室 ID。
Param admin 要移除管理员权限的 ID。
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> removeChatRoomAdmin(String roomId, String admin) async {
  Map req = {"roomId": roomId, "admin": admin};
  Map result = await _channel.invokeMethod(
    ChatMethodKeys.removeChatRoomAdmin,
    req,
  );
  try {
    ChatError.hasErrorFromResult(result);
  } on ChatError catch (e) {
    throw e;
  }
}