@Override
    public List<me.lucko.luckperms.common.command.abstraction.Command<?>> getExtraCommands() {
        return Collections.singletonList(new SpongeParentCommand(this));
    }
LuckPerms implementation for the Sponge API.
sponge/src/main/java/me/lucko/luckperms/sponge/LPSpongePlugin.java