def register_hook(self, hook, priority='NORMAL'):
        """Register a hook into the hook list.

        The hook will be inserted into a priority queue, with the specified
        priority (See :class:`Priority` for details of priorities).
        For hooks with the same priority, they will be triggered in the same
        order as they are registered.

        Args:
            hook (:obj:`Hook`): The hook to be registered.
            priority (int or str or :obj:`Priority`): Hook priority.
                Lower value means higher priority.
        """
        assert isinstance(hook, Hook)
        if hasattr(hook, 'priority'):
            raise ValueError('"priority" is a reserved attribute for hooks')
        priority = get_priority(priority)
        hook.priority = priority
        # insert the hook to a sorted list
        inserted = False
        for i in range(len(self._hooks) - 1, -1, -1):
            if priority >= self._hooks[i].priority:
                self._hooks.insert(i + 1, hook)
                inserted = True
                break
        if not inserted:
            self._hooks.insert(0, hook)
Register a hook into the hook list.

        The hook will be inserted into a priority queue, with the specified
        priority (See :class:`Priority` for details of priorities).
        For hooks with the same priority, they will be triggered in the same
        order as they are registered.

        Args:
            hook (:obj:`Hook`): The hook to be registered.
            priority (int or str or :obj:`Priority`): Hook priority.
                Lower value means higher priority.
        
ControlNet-v1-1-nightly/annotator/uniformer/mmcv/runner/base_runner.py