[Python] Python equivalent to `as` type assertion in TypeScript [duplicate]

In TypeScript you can override type inferences with the as keyword

const canvas = document.querySelector('canvas') as HTMLCanvasElement;


Are there similar techniques in Python3.x typing without involving runtime casting? I want to do something like the following:

class SpecificDict(TypedDict):
foo: str
bar: str

res = request(url).json() as SpecificDict

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