Hey all, I brought up an issue recently on the user forums noting issues around type hints and multi-output PTransforms: https://lists.apache.org/thread.html/r94bf2e43f09a290dbe87d5a8d7eedb34ea215e0bea861521cbdb0c1c%40%3Cuser.beam.apache.org%3E
As mentioned there, I think that a NotImplementedError should be raised when attaching type hints to multi-output PTransforms while the correct implementation is figured out. And that a 'correct' implementation would look something like the Union typehints that are expected on multi-input PTransforms. I am happy to help out and wanted to get the discussion started around what the community would like to see here. Thank you all for a great product. Best, Joshua -- Joshua Harrison | Software Engineer | joshharri...@gmail.com <joshharri...@google.com> | 404-433-0242
