Welcome.

I added Norio as a contributor and assigned the task to them.

On Fri, Dec 15, 2017 at 4:55 PM, Ahmet Altay <al...@google.com> wrote:

> Hi Norio,
>
> The ticket is asking for an example however this feature is currently not
> supported by the SDK. First the support needs to be added.
>
> On Tue, Dec 12, 2017 at 10:44 PM, Akagi Norio <redtree.dev1...@gmail.com>
> wrote:
>
>> Hi Ahmet and Robert,
>>
>> Thank you for the reply.
>> Just to clarify, I initially thought this ticket is just to add an
>> example, is it correct?
>>
>> An example from Roberts looks not supported by current SDK
>> https://github.com/apache/beam/blob/master/sdks/python/apach
>> e_beam/transforms/ptransform.py#L280
>> so I’m wondering if I actually need to update SDK to support a typehint
>> with multiple output tags.
>>
>> I just started reading Beam’s code base, so it may take some time.
>> If that’s okay then I’d happy to work on the ticket, so please assign it
>> to me.
>>
>
> It is OK to take your time before working on this problem. I could not
> assign to you. (I guess you first need to be added as a contributor to the
> project). I added comment mentioning that you are working on this issue.
>
> Thank you again!
> Ahmet
>
>
>
>>
>> Regards,
>> Norio Akagi
>>
>>
>> On Dec 11, 2017, at 4:50 PM, Ahmet Altay <al...@google.com> wrote:
>>
>> Hi Norio,
>>
>> Thank you for your interest. If you would like to work on this I can
>> assign the JIRA to you. I do not think this change in sufficient or
>> correct. This reads as if SplitLinesToWordsFn returns a Tuple of things,
>> however instead it produces three unrelated collections of different types.
>>
>> I think the work for fixing the issue should be:
>> - Clarifying what the API needs to look like for typehints in case of
>> multiple outputs.
>> - Updating documentation for that (pydocs &
>> https://beam.apache.org/documentation/sdks/python-type-safety/).
>> - Adding examples. At that point we can choose to either update current
>> examples or add new examples.
>>
>> Thank you,
>> Ahmet
>>
>> On Mon, Dec 11, 2017 at 2:48 AM, Akagi Norio <redtree.dev1...@gmail.com>
>> wrote:
>>
>>> Hi,
>>>
>>> I’m working on a task BEAM-3280 (Add typehints with TaggedOutput) and
>>> just want to clarify before I send a PR.
>>> https://issues.apache.org/jira/browse/BEAM-3280
>>>
>>> Is it sufficient to modify the code in apache_beam.cookbook.multiple_
>>> output_pardo.py like below ?
>>>
>>> # with_outputs allows accessing the explicitly tagged outputs of a DoFn.
>>>         split_lines_result = (lines
>>>                               | 
>>> beam.ParDo(SplitLinesToWordsFn().with_output_types(
>>>                                   beam.typehints.Tuple[
>>>                                     beam.typehints.Generator[unicode],
>>>                                     beam.typehints.Generator[unicode],
>>>                                     beam.typehints.Generator[int],
>>>                                   ],
>>>                               )).with_outputs(
>>>                                   
>>> SplitLinesToWordsFn.OUTPUT_TAG_SHORT_WORDS,
>>>                                   
>>> SplitLinesToWordsFn.OUTPUT_TAG_CHARACTER_COUNT,
>>>                                   main='words')
>>>                              )
>>>
>>> Or do you expect something different to add a typehint to multiple
>>> outputs?
>>>
>>> Regards,
>>> Norio Akagi
>>>
>>
>>
>>
>

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