Function get_sliding_mobility 

pub fn get_sliding_mobility(
    gen_mode: MoveGenMode,
    sq: Square,
    occup_us: Bitboard,
    occup_them: Bitboard,
    mis: &[MagicInfo; 64],
    at: &AttackTable,
    lookup_table: &Vec<Vec<Bitboard>>,
) -> Bitboard

returns sliding mobility