human
Solve the following python programming problem given the following code:
@ pytest.fixture (scope = 'session') 
def MockResponder() : 
    MockResponderClass = mock.create_autospec (GrowlerHTTPResponder) 
    def buildMockResponder(proto) : 
        responder = MockResponderClass (proto) 
        responder.headers = dict () 
        return responder 
return MockResponderClass 

    
    

    Fix the buggy line: return MockResponderClass
assistant
#Here is Python code to fix the buggy line: return MockResponderClass
.

return def buildMockResponder(