(self)
return obj_dict
For pickling.
For pickling.
For pickling .
def __getstate__(self):
        """For pickling."""
        obj_dict = self.__dict__.copy()
        del(obj_dict['backend'])
        return obj_dict
def __getstate__ ( self ) : obj_dict = self . __dict__ . copy ( ) del ( obj_dict [ 'backend' ] ) return obj_dict