def METHOD_NAME(self):
    """Run virt sub test in backgroup"""
    wait_time = float(self.params.get("sub_test_wait_time", 0))
    args = (self.test, self.params, self.env, self.params["sub_type"])
    bg_test = BackgroundTest(run_virt_sub_test, args)
    bg_test.start()
    wait_for(bg_test.is_alive, first=wait_time, step=3, timeout=240)
    return bg_test