Erik MontnemeryandGitHub b0d033ef29 Add mixin class CollectionEntity for the collection helper (#77703) ...

* Add mixin class CollectionEntity for the collection helper

* Improve typing

* Address review comments

* Fix tests

2022-09-03 12:56:49 +02:00

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__init__.py

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test_init.py

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test_reproduce_state.py

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