text: """abc is too slow"""
  
  
  class Interface(object):
      pass
  
  
  class SQLLiteralInterface(Interface):
      _alias_name = None
  
      @property
      def alias_name(self):
          return self._alias_name
  
      def get_sql_and_params(self):
          """return sql literal and params
          @rtype (str, list)
          """
          raise NotImplementedError
  