set_lobby_list_filter  is needed

hey, I need a interface of set_lobby_list_filter.
Sometimes I don't want players to access lobby information created by users from other regions, and the same goes for fully occupied lobbies.
I found 'set_lobby_list_filter' in 'steamworks.rs'.
I tried writing Rust code, but I really can't.
And Get/SetLobbyMemberData is also needed.
Anyone who can help me do that job.thanks a lot.