def webwxbatchgetcontact(self, gid_list):
        """
        @brief      get group contacts
        @param      gid_list, The list of group id
        @return     List, list of group contacts
        """
        url = self.wx_conf['API_webwxbatchgetcontact'] + \
            '?type=ex&r=%s&pass_ticket=%s' % (
                int(time.time()), self.pass_ticket
            )
        params = {
            'BaseRequest': self.base_request,
            "Count": len(gid_list),
            "List": [{"UserName": gid, "EncryChatRoomId": ""} for gid in gid_list]
        }
        dic = post(url, params)
        return dic['ContactList']

        @brief      get group contacts
        @param      gid_list, The list of group id
        @return     List, list of group contacts
        
wxbot_project_py2.7/wechat/wechat_apis.py