Ahmet Altay created BEAM-7395:
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Summary: Check immutability violations in Dataflow Runner (as an
option)
Key: BEAM-7395
URL: https://issues.apache.org/jira/browse/BEAM-7395
Project: Beam
Issue Type: New Feature
Components: sdk-py-core
Reporter: Ahmet Altay
Users are going to mutate inputs and outputs of DoFn inappropriately. We should
help their tests fail to catch such mistakes. (Similar to the
DirectPipelineRunner in Java SDK)
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