code: def update_group_property(self, group_id, group_properties):
          
          group_properties['group_id'] = group_id
          return self._post(
              'merchant/group/propertymod',
              data=group_properties
          )
docs: 修改分组属性
  
          :param group_id: 商品分组ID
          :param group_properties: 商品分组属性
          :return: 返回的 JSON 数据包