Ensure that this works:

```python
@setup
def mytask():
    print("I am a setup task")

with dag_maker() as dag:
    mytask.override(task_id='newtask')

assert len(dag.task_group.children) == 1
setup_task = dag.task_group.children["newtask"]
assert setup_task._is_setup
```
and teardown also works
pre_execute: TaskPreExecuteHook | None = None,
        post_execute: TaskPostExecuteHook | None = None,
        trigger_rule: str = DEFAULT_TRIGGER_RULE,
        resources: dict[str, Any] | None = None,
        run_as_user: str | None = None,
        task_concurrency: int | None = None,
        max_active_tis_per_dag: int | None = None,
        executor_config: dict | None = None,
        do_xcom_push: bool = True,
        inlets: Any | None = None,
        outlets: Any | None = None,
        task_group: TaskGroup | None = None,
        doc: str | None = None,
        doc_md: str | None = None,
        doc_json: str | None = None,
        doc_yaml: str | None = None,
        doc_rst: str | None = None,
        **kwargs,
    ):
        from airflow.models.dag import DagContext
        from airflow.utils.task_group import TaskGroupContext
        self.__init_kwargs = {}
        super().__init__()
        kwargs.pop("_airflow_mapped_validation_only", None)
        if kwargs:
            if not conf.getboolean("operators", "ALLOW_ILLEGAL_ARGUMENTS"):
                raise AirflowException(
                    f"Invalid arguments were passed to {self.__class__.__name__} (task_id: {task_id}). "
                    f"Invalid arguments were:\n**kwargs: {kwargs}",
                )