Backup

name	type	description
backup.path	string	Set backup path. Each new backup will create a **backup.path/id** folder containing complete environment copy.
backup.run	function	Start background backup. Does not block.
backup.active	int	Shows if backup operation is in progress.
backup.last	int	Shows id of the last completed backup.
backup.last_complete	int	Shows if the last backup was successful.