Token objects should be `namedtuple`s

[Adimote]

As token objects are just data stores, they should be namedtuples

[RealOrangeOne]

They aren't just data stores, they do have methods (or at least, 2). But both of those could (and should) probably be externalised out, so namedtuple would still work, assuming we keep that functionality.

[PeterJCLaw]

@RealOrangeOne note that namedtuples can have methods too, or, rather, you can inherit from a namedtuple and add methods.