Type Definition osu_db::listing::StarRatings

type StarRatings = Vec<(ModSet, f64)>;

A list of the precalculated amount of difficulty stars a given mod combination yields for a beatmap.

You might want to convert this list into a map using ratings.into_iter().collect::<HashMap<_>>() or variations, allowing for quick indexing with different mod combinations.

Note that old "osu!.db" files (before the 2014/06/09 version) do not have these ratings.