`ListAttribute(of=UnicodeAttribute)` is not compatible with `List[str]`

[james10424]

They should be equivalent, but mypy/pylance did not agree with this.

To reproduce:

• create a model with thing = ListAttribute(of=UnicodeAttribute)
• write this line the_thing: List[str] = model.thing

This seems to be an issue with ListAttribute not properly extracting types, to add to this, consider the following:

the_first_thing: str = model.thing[0] This will cause "UnicodeAttribute" is incompatible with "str"

However, if the attribute is only UnicodeAttribute, then it will be recognized as str when assigned to a variable.

[james10424]

Similarly, when trying to set the array, the same type error is raised.

Argument of type "list[str]" cannot be assigned to parameter "value" of type "List[UnicodeAttribute] | Attribute[List[UnicodeAttribute]]......