kamilwu commented on a change in pull request #13048:
URL: https://github.com/apache/beam/pull/13048#discussion_r503337032
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File path: sdks/python/apache_beam/transforms/core.py
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@@ -895,6 +897,15 @@ class CombineFn(WithTypeHints, HasDisplayData,
urns.RunnerApiFn):
def default_label(self):
return self.__class__.__name__
+ def setup(self):
+ """Called to prepare an instance for combining.
+
+ This method can be useful if there is some state that needs to be loaded
+ before executing any of the other methods. The resources can then be
+ disposed in ``CombineFn.teardown``.
Review comment:
Thanks.
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