lukecwik commented on a change in pull request #10980: Address leftover styling
comments from PR/10892
URL: https://github.com/apache/beam/pull/10980#discussion_r384767097
##########
File path: sdks/python/apache_beam/testing/test_stream.py
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@@ -183,9 +182,20 @@ class TestStream(PTransform):
Each event emits elements, advances the watermark or advances the processing
time. After all of the specified elements are emitted, ceases to produce
output.
+
+ When expanded, if only the default output or only one output tag is
specified,
+ then a PCollection will be returned. Otherwise, a dictionary of output names
+ to PCollection will be returned.
Review comment:
```suggestion
Applying the PTransform will return a single PCollection if only the
default output or only one output tag has been used. Otherwise a dictionary of
output names to PCollections will be returned.
```
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