Invalid leaf directive! `since`

Expands IItemStack with JEI-specific conversions.

This expansion was added by a mod with mod-id jeitweaker. So you need to have this mod installed if you want to use this feature.

반환 자료형	암묵적
반환 자료형 JeiDrawable	암묵적 true
반환 자료형 JeiIngredient	암묵적 true