liferoad commented on code in PR #25743:
URL: https://github.com/apache/beam/pull/25743#discussion_r1136223412
##########
sdks/python/apache_beam/transforms/core.py:
##########
@@ -1427,6 +1478,16 @@ def __init__(self, fn, *args, **kwargs):
if not isinstance(self.fn, DoFn):
raise TypeError('ParDo must be called with a DoFn instance.')
+ # DoFn.process cannot allow both return and yield
+ if _check_fn_use_yield_and_return(self.fn.process):
+ _LOGGER.warning(
+ 'The yield and return statements in the process method '
Review Comment:
Sounds good. Done.
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