'Calls the application with this request\'s environment.  Returns a
Response object that wraps up the application\'s result.
:param application: the WSGI application to call'

def get_response(self, application):

    (status, headers, app_iter) = self.call_application(application)
    return Response(status=status, headers=dict(headers), app_iter=app_iter, request=self)
