How to correctly override Field.to_representation

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Question

I have a class that looks something like this:

class DecimalSerializerMethodField(s.DecimalField, s.SerializerMethodField):
    def to_representation(self, value: Any) -> Any:
        method_result = s.SerializerMethodField.to_representation(self, value)
        decimal_result = s.DecimalField.to_representation(self, method_result)

        return decimal_result

And when running mypy, I'm getting the following errors:

error: Argument 1 to "to_representation" of "Field" has incompatible type "DecimalSerializerMethodField"; expected "Field[_VT, _DT, _RP, _IN]"
error: Argument 1 to "to_representation" of "Field" has incompatible type "DecimalSerializerMethodField"; expected "Field[_VT, _DT, _RP, _IN]"
error: Argument 2 to "to_representation" of "Field" has incompatible type "_RP"; expected "_VT"

Now, I understand, that this is because I'm calling other_class.method(self, ...), but I'm not sure on how to workaround it.

My question, is how to correctly implement this class, while keeping typing intact?

Thanks