in get_type_hints(Appliction), TypeError: <class 'traitlets.traitlets.Dict'> is not a generic class about traitlets

[spchamp]

of course, the Dict component of the original type hint would be applicable for when the subcommands attribute is accessed at the class scope, as a descriptor, e.g Application.subcommands

Not related to this issue, just to ask: I don't suppose anyone's got an idea for drafting a PEP about how type hint interpretation may differ for a descriptor type accessed at the class scope, as the descriptor object itself -- typically returned from __get__ in this case -- or accessed at the instance scope, vis a vis the return value from __get__ when the instance arg is not None?