def do(self, guard, index, next_index):
        """
        Create a guard that requires the resource guard to be entered and exited based on the order provided by index.
        :param guard: The context manager for the resource.
        :param index: The order to wait for.
        :param next_index: The next index to release.
        :return:
        """
        return GuardSynchronizer.Guard(self, guard, index, next_index)
Create a guard that requires the resource guard to be entered and exited based on the order provided by index.
        :param guard: The context manager for the resource.
        :param index: The order to wait for.
        :param next_index: The next index to release.
        :return: