Since Python 3.11, as per PEP 655, what you need is NotRequired: class _trending(TypedDict): allStores: NotRequired[bool] category: str date: str average: List[int] notice that you shouldn’t use Optional in TypedDict, and only use (Not)Required if you want to use TypedDict with Pydantic, you could refer this article
As pointed out by Blckknght, you and Stanislav Ivanov in the comments, you can use NamedTuple: from typing import NamedTuple class NameInfo(NamedTuple): name: str first_letter: str def get_info(name: str) -> NameInfo: return NameInfo(name=name, first_letter=name[0]) Starting from Python 3.8 you can use TypedDict which is more similar to what you want: from typing import TypedDict class … Read more