pyrser/type_system/scope.py
def symmetric_difference_update(self, oset: Scope) -> Scope:
        """ Remove common values
            and Update specific values from another Set
        """
        skey = set()
        keys = list(self._hsig.keys())
        for k in keys:
            if k in oset:
                skey.add(k)
        for k in oset._hsig.keys():
            if k not in skey:
                self._hsig[k] = oset.get(k)
        for k in skey:
            del self._hsig[k]
        return self
def symmetric_difference_update(self, oset: Scope) -> Scope:
        """ Remove common values
            and Update specific values from another Set
        """
        skey = set()
        keys = list(self._hsig.keys())
        for k in keys:
            if k in oset:
                skey.add(k)
        for k in oset._hsig.keys():
            if k not in skey:
                self._hsig[k] = oset.get(k)
        for k in skey:
            del self._hsig[k]
        return self
Remove common values
            and Update specific values from another Set