code: def update(self, session, title=None, bulletin=None, desc=None):
          '''taobao.shop.remainshowcase.get 获取卖家店铺剩余橱窗数量
          
          目前只支持标题、公告和描述的更新'''
          request = TOPRequest('taobao.shop.remainshowcase.get')
          if title!=None: request['title'] = title
          if bulletin!=None: request['bulletin'] = bulletin
          if desc!=None: request['desc'] = desc
          self.create(self.execute(request, session)['shop'])
          return self update(self, session, title=None, bulletin=None, desc=None):
          '''taobao.shop.remainshowcase.get 获取卖家店铺剩余橱窗数量
          
          目前只支持标题、公告和描述的更新'''
          request = TOPRequest('taobao.shop.remainshowcase.get')
          if title!=None: request['title'] = title
          if bulletin!=None: request['bulletin'] = bulletin
          if desc!=None: request['desc'] = desc
          self.create(self.execute(request, session)['shop'])
          return self
docs: taobao.shop.remainshowcase.get 获取卖家店铺剩余橱窗数量
          
          目前只支持标题、公告和描述的更新