def test_delete(self):
        """
        L{MemCacheProtocol.delete} returns a L{Deferred} which is called back
        with C{True} when the server notifies a success.
        """
        return self._test(
            self.proto.delete(b"bar"), b"delete bar\r\n", b"DELETED\r\n", True)

        L{MemCacheProtocol.delete} returns a L{Deferred} which is called back
        with C{True} when the server notifies a success.
        
stackoverflow/venv/lib/python3.6/site-packages/twisted/test/test_memcache.py