ashb commented on code in PR #22975:
URL: https://github.com/apache/airflow/pull/22975#discussion_r849657477
##########
airflow/models/mappedoperator.py:
##########
@@ -569,6 +573,7 @@ def _get_map_lengths(self, run_id: str, *, session:
Session) -> Dict[str, int]:
map_lengths[mapped_arg_name] += length
return map_lengths
+ @cache
def _resolve_map_lengths(self, run_id: str, *, session: Session) ->
Dict[str, int]:
Review Comment:
```python-console
In [2]: @provide_session
...: def a(session):
...: print(id(session))
...: b()
In [4]: @provide_session
...: def b(session):
...: print(id(session))
In [5]: a()
140533469520240
140533469520240
```
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