robertwb commented on a change in pull request #13431:
URL: https://github.com/apache/beam/pull/13431#discussion_r533683975
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File path: sdks/python/apache_beam/runners/common.py
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@@ -218,10 +218,11 @@ def __init__(self, obj_to_invoke, method_name):
elif core.DoFn.KeyParam == v:
self.key_arg_name = kw
elif isinstance(v, core.DoFn.RestrictionParam):
- self.restriction_provider = v.restriction_provider
+ self.restriction_provider = v.restriction_provider or obj_to_invoke
Review comment:
`v.restriction_provider` will be `None` iff `None` was passed to
`DoFn.RestrictionParam` (or omitted, as `None` is the default value).
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