Mount-control plug options

Hi, I want to achieve below command using snapctl.

snapcraft.yaml

plugs:
   mountctl:
     interface: mount-control
     mount:
      - persistent: true
        what: diag
        where: /dev/ffs-diag
        type: [functionfs]
        options: [] ??

shell.sh

snapctl mount -o uid=2000,gid=2000,no_disconnect=1,rmode=0550,fmode=0660 -t functionfs diag /dev/ffs-diag

but due to option restrictions mentioned in mountctl I can’t. Can some one please help me to achieve above mentioned mount command. Please suggest the possible solution!