human
I wrote the below code

    class RealTests(mixin_class, AsyncTestCase, ):
        '\n                                Tests    that    endpoints    are    available    over    the    network    interfaces    that\n                                real    API    users    will    be    connecting    from.\n                                '
        def setUp(self):
            path = os.path.relpath(self.mktemp())
            self.app = fixture(self)
            self.port = reactor.listenUNIX(path, Site(self.app.resource()))
            self.addCleanup(self.port.stopListening)
            self.agent = ProxyAgent(UNIXClientEndpoint(reactor, path), reactor)
            super(RealTests, self).setUp()
    RealTests.__name__ += name
    RealTests.__module__ = mixin_class.__module__
    return RealTests

What's a good function header?
 Here's a good function header?
assistant
#Here's a good function header.

def build_UNIX_integration_tests(mixin_class, name, fixture):