Support for ip route save and ip route restore commands

[pseusys]

Browsing the ip command docs I have noticed three different commands for route bulk manipulation: ip route flush, ip route save and ip route restore. Sadly, it seems like only the first one is implemented in pyroute2. Is there an explanation for that? The latter two commands might be really useful for routing table manipulation. Is there any official workaround (involving IPRoute.get_routes(table=...) probably)? Could I maybe help adding support for that?
If no support is planned, could you please let me know, how can I restore a route thaat I once received with IPRoute.get_routes? It is received in a form of a dictionary.