pyrser/type_system/scope.py
def difference_update(self, oset: Scope) -> Scope:
        """ Remove values common with another Set """
        keys = list(self._hsig.keys())
        for k in keys:
            if k in oset:
                del self._hsig[k]
        return self
def difference_update(self, oset: Scope) -> Scope:
        """ Remove values common with another Set """
        keys = list(self._hsig.keys())
        for k in keys:
            if k in oset:
                del self._hsig[k]
        return self
Remove values common with another Set