[Python] only change type annotation of method in subclass

Is it possible to change/"override" the return type of a method in a subclass without overriding/altering the method (implementation) itself? Something like:

class Foo:
def gimme_thing() -> Thing:
return self.factory.create()

class Bar(Foo):
def gimme_thing() -> BarThing: ... # <--- for Bar the factory will a return another type, how to spell this?

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