generic extended communities support

Bird folks, Is there any chance that the transitive part of the following RFC draft will be implemented in BIRD? https://tools.ietf.org/html/draft-ietf-idr-as4octet-extcomm-generic-subtype-... I only ask as the implementation seems like it might be trivial since one can already do something like (4, 4200000000, 60000) already works for ext communities in Bird. This would definitely be useful to me, as I am currently abusing route origin subtype ext communities since they have no special meaning in bird. I would love to see the following syntax available: (generic, 4200000000, 60000) Thanks, wt