ashb commented on a change in pull request #16732:
URL: https://github.com/apache/airflow/pull/16732#discussion_r664797224
##########
File path: airflow/models/baseoperator.py
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@@ -1595,11 +1652,14 @@ def chain(*tasks: Union[BaseOperator,
Sequence[BaseOperator]]):
def cross_downstream(
- from_tasks: Sequence[BaseOperator], to_tasks: Union[BaseOperator,
Sequence[BaseOperator]]
+ from_tasks: Union[Sequence[BaseOperator], Sequence["XComArg"]],
+ to_tasks: Union[Sequence[BaseOperator], Sequence["XComArg"]],
Review comment:
Shouldn't this be
```suggestion
from_tasks: Sequence[Union[BaseOperator, "XComArg"]],
to_tasks: Sequence[Union[BaseOperator Sequence["XComArg"]],
```
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