boyuanzz commented on a change in pull request #12016:
URL: https://github.com/apache/beam/pull/12016#discussion_r447337646
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File path: sdks/python/apache_beam/transforms/core.py
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@@ -320,6 +320,22 @@ def split_and_size(self, element, restriction):
for part in self.split(element, restriction):
yield part, self.restriction_size(element, part)
+ def truncate(self, element, restriction):
Review comment:
`restriction_size` is a required API, thus `truncate` is enough here
since the caller should be the system.
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