def setsockopt(self, *args):
        """
        Setsockopt is not implemented.  The method is provided since
        real sockets have it and some code expects it.  No behavior of
        L{FakeSocket} is affected by a call to it.
        """

        Setsockopt is not implemented.  The method is provided since
        real sockets have it and some code expects it.  No behavior of
        L{FakeSocket} is affected by a call to it.
        
stackoverflow/venv/lib/python3.6/site-packages/twisted/internet/test/test_tcp.py