def apply_inheritance(self):
        """ For all items and templates inherit properties and custom
            variables.

        :return: None
        """
        super(Services, self).apply_inheritance()

        # add_item only ensure we can build a key for services later (after explode)
        for item in list(self.items.values()):
            self.add_item(item, False)
For all items and templates inherit properties and custom
            variables.

        :return: None