protobuf support

[makarr]

I'm using msgspec to shuttle data around where I'm often both the server and the client, meaning the schema is predefined and protobuf's extra compression would be nice. Taking a look at the protobuf Python library, msgspec sure looks a lot more friendly and it seems all that stuff could be handled with msgspec's pre-existing encoder / decoder hooks. It would be amazing to simply drop-in msgspec.protobuf.encode() for msgspec.msgpack.encode().

[trim21]

Serialized Protobuf bytes doesn't contain scheme data, is it even possible to decode protobuf bytes without source proto file?

[pablospe]

Maybe relevant. The following project generates Pydantic models from protobuf:
https://github.com/danielgtaylor/python-betterproto?tab=readme-ov-file#generating-pydantic-models

I think the support has to be added there instead?