Get information about a group

        :type group_id: int
        :param group_id: Group ID Number

        :rtype: dict
        :return: a dictionary containing group information

def show_group(self, group_id):
        """
        Get information about a group

        :type group_id: int
        :param group_id: Group ID Number

        :rtype: dict
        :return: a dictionary containing group information
        """
        res = self.post('loadGroups', {'groupId': group_id})
        if isinstance(res, list):
            return _fix_group(res[0])
        else:
            return _fix_group(res)