(self, **kwargs)
Build the :class:`stdnet.utils.async.BackendQuery` for this
        instance.
This is a virtual method with different implementation in :class:`Query`
and :class:`QueryElement`.
Build the :class:`stdnet.utils.async.BackendQuery` for this
        instance.
This is a virtual method with different implementation in :class:`Query`
and :class:`QueryElement`.
Build the : class : stdnet . utils . async . BackendQuery for this instance . This is a virtual method with different implementation in : class : Query and : class : QueryElement .
def backend_query(self, **kwargs):
        '''Build the :class:`stdnet.utils.async.BackendQuery` for this
        instance.
This is a virtual method with different implementation in :class:`Query`
and :class:`QueryElement`.'''
        raise NotImplementedError
def backend_query ( self , * * kwargs ) : raise NotImplementedError