pyright says that type of cattrs.preconf.json.make_converter is partially unknown #593
Description
Pyright flags the code below with "Type of "make_converter" is partially unknown".
converter = cattrs.preconf.json.make_converter()
The problem is the type of the parameter unstruct_collection_overrides: Mapping[type, (...) -> Unknown].
Poking around in the cattrs code, this error can be resolved by changing the type of unstruct_collection_overrides in Converter.Init from
unstruct_collection_overrides: Mapping[type, Callable] = {}
to
unstruct_collection_overrides: Mapping[type, UnstructureHookT] = {}