Ryan Thompson created BEAM-14217:
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Summary: Figure out how type hints should work
Key: BEAM-14217
URL: https://issues.apache.org/jira/browse/BEAM-14217
Project: Beam
Issue Type: Sub-task
Components: sdk-py-core
Reporter: Ryan Thompson
RunInference main interface could have many different types of input and ouput
types.
It probably should have generice typehints of some sort, but the code that
infers them will need to be specified.
I haven't yet figured out how to do this, but I'm convinced that getting really
specific type hints will help our users find errors.
We have
@input output types unknown
RunInference(PTransform)
has RunInferenceDoFun (also input output types unknown)
calls composedRunInferenceFn (input/output types known)
we need to get correct type hints into the RunInference PTransform and it's not
apparent how to do that exactly since annotations won't be possible.
I think we'll need some correct values to put into the with_output_type chain
in the ptransform.
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