def __ne__(self, other):
        """
        Check equality and either forward a NotImplemented or
        return the result negated.
        """
        result = self.__eq__(other)
        if result is NotImplemented:
            return NotImplemented

        return not result

        Check equality and either forward a NotImplemented or
        return the result negated.
        
product/gradle-plugin/src/main/python/attr/_make.py