subuserzero commented on issue #29366:
URL: https://github.com/apache/airflow/issues/29366#issuecomment-1442444585
> **As a quick potential workaround**, you may wrap a mapped operator into a
`TaskGroup` with `default_args={}`, because here is what [docs
say](https://airflow.apache.org/docs/apache-airflow/2.5.1/core-concepts/dags.html#taskgroups):
>
> > `TaskGroup` also supports `default_args` like DAG, it will **overwrite
the `default_args` in DAG level**
>
> I have _not_ tested myself but accidentally noticed this in the
documentation, so if you have a chance to try it out, please let me know if it
works.
That did not seem to work for me, but replacing the `default_args` of the
DAG inside the task-group definition with an empty dict seems to get past the
TypeError:
@task_group(group_id='foo_group', dag=<dag-ref>)
def foo_group():
dag.default_args = {}
....
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