ashb commented on a change in pull request #20322:
URL: https://github.com/apache/airflow/pull/20322#discussion_r770958858
##########
File path: airflow/utils/context.py
##########
@@ -191,7 +191,14 @@ def items(self):
def values(self):
return ValuesView(self._context)
- def copy_only(self, keys: Container[str]) -> "Context":
- new = type(self)({k: v for k, v in self._context.items() if k in keys})
- new._deprecation_replacements = self._deprecation_replacements.copy()
- return new
+
+def context_copy_partial(source: Context, keys: Container[str]) -> "Context":
+ """Create a context by copying items under selected keys in ``source``.
+
+ This is implemented as a free function because the ``Context`` type is
+ "faked" as a ``TypedDict`` in ``context.pyi``, which cannot have custom
+ functions.
Review comment:
```suggestion
functions.
:meta private:
```
as we probably don't want this to be part of the "public API".
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