CLASS ckd net/minecraft/world/biome/layer/BiomeGroupLayer
	CLASS ckd$a net/minecraft/world/biome/layer/BiomeGroupLayer$AddGroup2Layer
	CLASS ckd$b net/minecraft/world/biome/layer/BiomeGroupLayer$AddGroup3Layer
	CLASS ckd$c net/minecraft/world/biome/layer/BiomeGroupLayer$AddSpecialBiomesLayer