Create Templates dataclass

[h-mayorquin]

Simple dataclass for templates, including:

• ms_before/after
• nbefore/after
• channel_ids/unit_ids
• channel_locations
• sparsity

Needs to be picklable and JSON-serializable

[CodyCBakerPhD]

Needs to be picklable and JSON-serializable

Going with a Pydantic Model would go a long way beyond a traditional dataclass towards helping with these, as well as auto-generation of the accompanying JSON schema (not to mention native type checking / input validation)

[h-mayorquin]

Thanks, Cody. I personally would like to play to it. But I think that @samuelgarcia does not want to add any other dependency to the core? Am I wrong?

What do you guys think @samuelgarcia @alejoe91.

[alejoe91]

Yeah for the first round this will be mainly used internally, so I think that pydantic might bean overkill. Let's keep this in mind for future developments.

[h-mayorquin]

#1982