pub fn get_ability_rarity_id_by_weights(
rng: &mut StdRng,
rarity_weights: &[AbilityCaseRarityWeight],
) -> Result<AbilityRarityId>pub fn get_ability_rarity_id_by_weights(
rng: &mut StdRng,
rarity_weights: &[AbilityCaseRarityWeight],
) -> Result<AbilityRarityId>