uranusjr commented on a change in pull request #18084:
URL: https://github.com/apache/airflow/pull/18084#discussion_r704869726
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File path: airflow/models/xcom.py
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@@ -68,12 +80,22 @@ def __repr__(self):
@classmethod
@provide_session
- def set(cls, key, value, execution_date, task_id, dag_id, session=None):
+ def set(cls, key, value, task_id, dag_id, execution_date=None,
run_id=None, session=None):
"""
Store an XCom value.
:return: None
"""
+ if not (execution_date is None) ^ (run_id is None):
+ raise ValueError("Exactly one of execution_date or run_id must be
passed")
Review comment:
I think argument count errors are usually TypeError?
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