Summary
FRR has a possibility of leaking routes from vrf to vrf route-map route-map filtering. Our CLI does not have it.
Example:

route-map ROUTEMAPVRFIMPORT permit 10
 match ip address prefix-list VRFIMPORTLIST
 match source-vrf VRF1
exit

router bgp 64595
 address-family ipv4 unicast
  import vrf route-map ROUTEMAPVRFIMPORT
 exit-address-family
exit

Use case

This feature allows using route leaking between vrfs and filtering routes by route-map.

Additional information