Should Funker functions be able to define types of args/return values?

[bfirsh]

This could probably be done with protobufs (like GRPC), but some questions that were raised:

• Does this add unnecessary complexity? Can we leave it up to the user to do type checking, if required?
• How are the types specified? Could they be exposed as labels on the image?

[deitch]

IMHO unusual complexity. Simplicity makes for easier adoption.

[topiaruss]

KISS