def METHOD_NAME(self):
    container = self.driver.stop_container(
        Container(
            id=None,
            name=None,
            image=None,
            state=None,
            ip_addresses=None,
            driver=self.driver,
            extra={"taskArn": "12345", "taskDefinitionArn": "123556"},
        )
    )
    self.assertFalse(container is None)