The main change here is removing the internal PartyIdx completely and just parametrizing everything with the identity type. Consequently:
HoleVecs are not needed anymore
MappableResult crutch is not needed
Public API that previously took vectors/slices of Ids now takes BTreeSets
The identity type needs to be hashable, and the most convenient thing seems to be to require it to be Serializable and use that to hash it. Which leads to removing all specialized Hashable impls and just using Serialize to hash (with the help of hashing-serializer)
The main change here is removing the internal
PartyIdxcompletely and just parametrizing everything with the identity type. Consequently:HoleVecs are not needed anymoreMappableResultcrutch is not neededBTreeSetsSerializableand use that to hash it. Which leads to removing all specializedHashableimpls and just usingSerializeto hash (with the help ofhashing-serializer)