# Pastebin SizKnSqH
    @specialize.arg_or_var(2)
    def _type_isinstance(self, w_inst, w_type):
        if not isinstance(w_type, W_TypeObject):
            raise oefmt(self.w_TypeError, "need type object")
        if is_annotation_constant(w_type):
            cls = self._get_interplevel_cls(w_type)
            if cls is not None:
                assert w_inst is not None
                if isinstance(w_inst, cls):
                    return True
        return self.type(w_inst).issubtype(w_type)