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
partial_kwargs.setdefault("resources", resources)
    partial_kwargs.setdefault("doc", doc)
    partial_kwargs.setdefault("doc_json", doc_json)
    partial_kwargs.setdefault("doc_md", doc_md)
    partial_kwargs.setdefault("doc_rst", doc_rst)
    partial_kwargs.setdefault("doc_yaml", doc_yaml)
    
    if "task_concurrency" in kwargs:  
        raise TypeError("unexpected argument: task_concurrency")
    if partial_kwargs["wait_for_downstream"]:
        partial_kwargs["depends_on_past"] = True
    partial_kwargs["start_date"] = timezone.convert_to_utc(partial_kwargs["start_date"])
    partial_kwargs["end_date"] = timezone.convert_to_utc(partial_kwargs["end_date"])
    if partial_kwargs["pool"] is None:
        partial_kwargs["pool"] = Pool.DEFAULT_POOL_NAME
    partial_kwargs["retries"] = parse_retries(partial_kwargs["retries"])
    partial_kwargs["retry_delay"] = coerce_timedelta(partial_kwargs["retry_delay"], key="retry_delay")
    if partial_kwargs["max_retry_delay"] is not None:
        partial_kwargs["max_retry_delay"] = coerce_timedelta(
            partial_kwargs["max_retry_delay"],
            key="max_retry_delay",
        )
    partial_kwargs["executor_config"] = partial_kwargs["executor_config"] or {}
    partial_kwargs["resources"] = coerce_resources(partial_kwargs["resources"])
    return OperatorPartial(
        operator_class=operator_class,
        kwargs=partial_kwargs,
        params=partial_params,
    )
class BaseOperatorMeta(abc.ABCMeta):