int GetMasteryLevel(number , hero);
Where number is unique identifier of the mastery based on League of Legends API.
Returns number that is equivalent of hero current mastery level including level 0.
If hero is not specified then GetMyHero() is used instead.
int GetMasteries(hero);
Returns table with all masteries identifiers and their corresponding levels for certain hero.
If hero is not specified then GetMyHero() is used instead.