code: def get(self, rate_type, role, session, fields=[], **kwargs):
          '''taobao.traderates.get 搜索评价信息
          
          搜索评价信息，只能获取距今180天内的评价记录'''
          request = TOPRequest('taobao.traderates.get')
          request['rate_type'] = rate_type
          request['role'] = role
          if not fields:
              tradeRate = TradeRate()
              fields = tradeRate.fields
          request['fields'] = fields
          for k, v in kwargs.iteritems():
              if k not in ('result', 'page_no', 'page_size', 'start_date', 'end_date', 'tid') and v==None: continue
              request[k] = v
          self.create(self.execute(request, session))
          return self.trade_ratef get(self, rate_type, role, session, fields=[], **kwargs):
          '''taobao.traderates.get 搜索评价信息
          
          搜索评价信息，只能获取距今180天内的评价记录'''
          request = TOPRequest('taobao.traderates.get')
          request['rate_type'] = rate_type
          request['role'] = role
          if not fields:
              tradeRate = TradeRate()
              fields = tradeRate.fields
          request['fields'] = fields
          for k, v in kwargs.iteritems():
              if k not in ('result', 'page_no', 'page_size', 'start_date', 'end_date', 'tid') and v==None: continue
              request[k] = v
          self.create(self.execute(request, session))
          return self.trade_rates
docs: taobao.traderates.get 搜索评价信息
          
          搜索评价信息，只能获取距今180天内的评价记录