Fix placeholder deep copy (#611)

* Fix placeholder deep copy

* Add annotations, __repr__ and __slots__

Co-authored-by: James Hilton-Balfe <gobot1234yt@gmail.com>

* Fix annotation

* Fix typing

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Co-authored-by: James Hilton-Balfe <gobot1234yt@gmail.com>

Adrien committed 2y ago

11618030693b507cf4a434050151c85485eadac5

Parent: 8d25c96

Committed by GitHub <noreply@github.com> on 9/18/2024, 11:56:51 AM