def mixin(self):
        """
        Add your own custom functions to the Underscore object, ensuring that
        they're correctly added to the OOP wrapper as well.
        """
        methods = self.obj
        for i, k in enumerate(methods):
            setattr(underscore, k, methods[k])

        self.makeStatic()
        return self._wrap(self.obj)
Add your own custom functions to the Underscore object, ensuring that
        they're correctly added to the OOP wrapper as well.