pyrser/type_system/scope.py
def difference(self, sig: Scope) -> Scope:
        """ Create a new Set produce by a Set subtracted by another Set """
        new = Scope(sig=self._hsig.values(), state=self.state)
        new -= sig
        return new
def difference(self, sig: Scope) -> Scope:
        """ Create a new Set produce by a Set subtracted by another Set """
        new = Scope(sig=self._hsig.values(), state=self.state)
        new -= sig
        return new
Create a new Set produce by a Set subtracted by another Set