uranusjr commented on a change in pull request #19034:
URL: https://github.com/apache/airflow/pull/19034#discussion_r730514702
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File path: airflow/models/param.py
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@@ -24,6 +24,16 @@
from airflow.exceptions import AirflowException
+class NoValueSentinel:
Review comment:
I think we now have like five different sentinel class implementations
in the code base. I have one for `DAG(schedule_interval)`. Probably should
unify them somewhat into `airflow.utils.types` at some point.
Further reading for those interested:
https://discuss.python.org/t/pep-661-sentinel-values/9126
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