code: def get(self, session, fields=[]):
          '''taobao.postages.get 获取卖家的运费模板
          
          获得当前会话用户的所有邮费模板'''
          request = TOPRequest('taobao.postages.get')
          if not fields:
              postage = Postage()
              fields = postage.fields
          request['fields'] = fields
          self.create(self.execute(request, session))
          return self.postagef get(self, session, fields=[]):
          '''taobao.postages.get 获取卖家的运费模板
          
          获得当前会话用户的所有邮费模板'''
          request = TOPRequest('taobao.postages.get')
          if not fields:
              postage = Postage()
              fields = postage.fields
          request['fields'] = fields
          self.create(self.execute(request, session))
          return self.postages
docs: taobao.postages.get 获取卖家的运费模板
          
          获得当前会话用户的所有邮费模板