code: def post(self, param, h, r):
          '''
          Args:
              param: request parameters
              h: ResultHandler
              r: YunpianApiResult
          '''
          try:
              rsp = self.client().post(self.uri(), param)
              # print(rsp)
              return self.result(rsp, h, r)
          except ValueError as err:
              return h.catch_exception(err, rf post(self, param, h, r):
          '''
          Args:
              param: request parameters
              h: ResultHandler
              r: YunpianApiResult
          '''
          try:
              rsp = self.client().post(self.uri(), param)
              # print(rsp)
              return self.result(rsp, h, r)
          except ValueError as err:
              return h.catch_exception(err, r)
docs: Args:
              param: request parameters
              h: ResultHandler
              r: YunpianApiResult