josh-fell commented on a change in pull request #17099:
URL: https://github.com/apache/airflow/pull/17099#discussion_r672770679
##########
File path: airflow/models/baseoperator.py
##########
@@ -1546,13 +1546,17 @@ def inherits_from_dummy_operator(self):
return getattr(self, '_is_dummy', False)
-def chain(*tasks: Union[BaseOperator, "XComArg", Sequence[Union[BaseOperator,
"XComArg"]]]):
+def chain(
+ *tasks: Union[
+ BaseOperator, "XComArg", EdgeModifier, Sequence[Union[BaseOperator,
"XComArg", EdgeModifier]]
Review comment:
Brilliant. I'm sure there will be other types that will be "chainable"
in the future. I agree the annotations are beginning to become unwieldy.
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