human
Solve the following python programming problem given the following code:
def make_app(manifest, model_mock = False, cache = None) : 
    def application(environ, start_response) : 
        '
        WSGI app for serving giotto applications
        ' 
        request = Request (environ) 
        controller = HTTPController (request, manifest, model_mock = model_mock) 
        try : 
            wsgi_response = controller.get_response () 
except : 
            raise 
return wsgi_response (environ, start_response) 
return cache 

    
    

    Fix the buggy line: return cache
assistant
#Here is Python program to fix the buggy line: return cache
.

return def application(