def test_getsMultiple(self):
        """
        L{MemCacheProtocol.getMultiple} handles an additional cas field in the
        returned tuples if C{withIdentifier} is C{True}.
        """
        return self._test(
            self.proto.getMultiple([b"foo", b"bar"], True),
            b"gets foo bar\r\n",
            b"VALUE foo 0 3 1234\r\negg\r\n"
            b"VALUE bar 0 4 2345\r\nspam\r\nEND\r\n",
            {b'bar': (0, b'2345', b'spam'), b'foo': (0, b'1234', b'egg')})

        L{MemCacheProtocol.getMultiple} handles an additional cas field in the
        returned tuples if C{withIdentifier} is C{True}.
        
stackoverflow/venv/lib/python3.6/site-packages/twisted/test/test_memcache.py