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https://issues.apache.org/jira/browse/BEAM-10258?focusedWorklogId=459440&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-459440
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ASF GitHub Bot logged work on BEAM-10258:
-----------------------------------------
Author: ASF GitHub Bot
Created on: 15/Jul/20 17:46
Start Date: 15/Jul/20 17:46
Worklog Time Spent: 10m
Work Description: saavannanavati commented on a change in pull request
#12009:
URL: https://github.com/apache/beam/pull/12009#discussion_r455230574
##########
File path: website/www/site/content/en/documentation/sdks/python-type-safety.md
##########
@@ -90,6 +91,15 @@ The following code declares an `int` input and a `str`
output type hint on the `
{{< code_sample
"sdks/python/apache_beam/examples/snippets/snippets_test_py3.py"
type_hints_map_annotations >}}
{{< /highlight >}}
+The following code demonstrates how to use annotations on `PTransform`
subclasses.
+A valid annotation is a `PCollection`, `PBegin`, or `PDone` that wraps an
internal (nested) type.
Review comment:
Sounds good.
Should we update documentation
[here](https://beam.apache.org/documentation/programming-guide/) and
[here](https://beam.apache.org/documentation/sdks/python-type-safety/) to note
the existence of `PBegin`?
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Issue Time Tracking
-------------------
Worklog Id: (was: 459440)
Time Spent: 15h 50m (was: 15h 40m)
> Support type hint annotations on PTransform's expand()
> ------------------------------------------------------
>
> Key: BEAM-10258
> URL: https://issues.apache.org/jira/browse/BEAM-10258
> Project: Beam
> Issue Type: Improvement
> Components: sdk-py-core
> Reporter: Saavan Nanavati
> Assignee: Saavan Nanavati
> Priority: P2
> Time Spent: 15h 50m
> Remaining Estimate: 0h
>
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