'Does the regression check.'

def Check(self, method, args=None, replace=None):

    router = api_auth_manager.API_AUTH_MGR.GetRouterForUser(self.token.username)
    mdata = router.GetAnnotatedMethods()[method]
    check = self.HandleCheck(mdata, args=args, replace=(lambda s: self._Replace(s, replace=replace)))
    check['test_class'] = self.__class__.__name__
    check['api_method'] = method
    self.checks.append(check)
