human
Solve the following python programming problem given the following code:
def buildIntegrationTests(mixinClass, name, fixture) : 
    '
    Build L{AsyncTestCase} classes that runs the tests in the mixin class with
    both real and in-memory queries.

    @param mixinClass: A mixin class for L{AsyncTestCase} that relies on having
        a C{self.scenario}.

    @param name: A C{str}, the name of the test category.

    :param fixture: A callable that takes an ``AsyncTestCase`` and returns a
        ``klein.Klein`` object.

    @return: A pair of L{AsyncTestCase} classes.
    ' 
    class RealTests (mixinClass, AsyncTestCase) : 
        '
        Tests that endpoints are available over the network interfaces that
        real API users will be connecting from.
        ' 
        def setUp(self) : 
            self.app = fixture (self) 
            self.port = reactor.listenTCP (0, Site (self.app.resource ()), interface = b'127.0.0.1') 
            self.addCleanup (self.port.stopListening) 
            portno = self.port.getHost ().port 
            self.agent = ProxyAgent (TCP4ClientEndpoint (reactor, '127.0.0.1', portno), reactor) 
            super (RealTests, self).setUp () 
class MemoryTests (mixinClass, AsyncTestCase) : 
        '
        Tests that endpoints are available in the appropriate place, without
        testing that the correct network interfaces are listened on.
        ' 
        def setUp(self) : 
            self.app = fixture (self) 
            self.agent = MemoryAgent (self.app.resource ()) 
            super (MemoryTests, self).setUp () 
RealTests.__name__ += name 
    MemoryTests.__name__ += fixture 
    RealTests.__module__ = mixinClass.__module__ 
    MemoryTests.__module__ = mixinClass.__module__ 
    return (RealTests, MemoryTests) 

    
    

    Fix the buggy line: MemoryTests.__name__ += fixture
assistant
#Here is Python code to fix the buggy line: MemoryTests.

MemoryTests.__name__ += name