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
"""Unmap a deserialized mapped operator should be similar to deserializing an non-mapped operator."""
    normal = BashOperator(task_id="a", bash_command=[1, 2], executor_config={"a": "b"})
    mapped = BashOperator.partial(task_id="a", executor_config={"a": "b"}).expand(bash_command=[1, 2])
    serialize = SerializedBaseOperator.serialize
    deserialize = SerializedBaseOperator.deserialize_operator
    assert deserialize(serialize(mapped)).unmap(None) == deserialize(serialize(normal))
def test_sensor_expand_deserialized_unmap():
    """Unmap a deserialized mapped sensor should be similar to deserializing a non-mapped sensor"""
    normal = BashSensor(task_id="a", bash_command=[1, 2], mode="reschedule")
    mapped = BashSensor.partial(task_id="a", mode="reschedule").expand(bash_command=[1, 2])
    serialize = SerializedBaseOperator.serialize
    deserialize = SerializedBaseOperator.deserialize_operator
    assert deserialize(serialize(mapped)).unmap(None) == deserialize(serialize(normal))
def test_task_resources_serde():
    """
    Test task resources serialization/deserialization.
    """
    from airflow.operators.empty import EmptyOperator
    execution_date = datetime(2020, 1, 1)
    task_id = "task1"
    with DAG("test_task_resources", start_date=execution_date) as _:
        task = EmptyOperator(task_id=task_id, resources={"cpus": 0.1, "ram": 2048})
    serialized = SerializedBaseOperator.serialize(task)
    assert serialized["resources"] == {
        "cpus": {"name": "CPU", "qty": 0.1, "units_str": "core(s)"},
        "disk": {"name": "Disk", "qty": 512, "units_str": "MB"},
        "gpus": {"name": "GPU", "qty": 0, "units_str": "gpu(s)"},
        "ram": {"name": "RAM", "qty": 2048, "units_str": "MB"},
    }
def test_taskflow_expand_serde():