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
"""
        Override this method to clean up subprocesses when a task instance
        gets killed. Any use of the threading, subprocess or multiprocessing
        module within an operator needs to be cleaned up, or it will leave
        ghost processes behind.
        """
    def __deepcopy__(self, memo):
        
        
        sys.setrecursionlimit(5000)  
        cls = self.__class__
        result = cls.__new__(cls)
        memo[id(self)] = result
        shallow_copy = cls.shallow_copy_attrs + cls._base_operator_shallow_copy_attrs
        for k, v in self.__dict__.items():
            if k == "_BaseOperator__instantiated":
                
                continue
            if k not in shallow_copy:
                setattr(result, k, copy.deepcopy(v, memo))
            else:
                setattr(result, k, copy.copy(v))
        result.__instantiated = self.__instantiated
        return result
    def __getstate__(self):