async fn departure_snapshot(
services: &State,
room_id: &RoomId,
pdu: &Pdu,
membership: MembershipState,
current_shortstatehash: ShortStateHash,
) -> Result<(PduCount, ShortStateHash, Option<MembershipState>)>async fn departure_snapshot(
services: &State,
room_id: &RoomId,
pdu: &Pdu,
membership: MembershipState,
current_shortstatehash: ShortStateHash,
) -> Result<(PduCount, ShortStateHash, Option<MembershipState>)>