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
self,
        group_id: str | None,
        prefix_group_id: bool = True,
        parent_group: TaskGroup | None = None,
        dag: DAG | None = None,
        default_args: dict[str, Any] | None = None,
        tooltip: str = "",
        ui_color: str = "CornflowerBlue",
        ui_fgcolor: str = "#000",
        add_suffix_on_collision: bool = False,
    ):
        from airflow.models.dag import DagContext
        self.prefix_group_id = prefix_group_id
        self.default_args = copy.deepcopy(default_args or {})
        dag = dag or DagContext.get_current_dag()
        if group_id is None:
            
            if parent_group:
                raise AirflowException("Root TaskGroup cannot have parent_group")
            
            
            self.used_group_ids = set()
            self.dag = dag
        else:
            if prefix_group_id: