shared abstract class ItemUseScript {
	void OnInitialize(const narray<EffectParameter@>@){};
	bool IsItemUsable(){ return false; };
	bool IsPokemonUseItem(){ return false; };
	bool IsUseValidForPokemon(Pokemon@){ return false; };
	bool IsHoldable(){ return false; };
	void OnUse(Battle@){};
	void OnPokemonUse(Pokemon@, bool){};
}