tOffsets=new Map}create(e){return{layer:e,parentLayer:e,arbitrary:0n,variants:0n,parallelIndex:0n,index:this.offsets[e]++,propertyOffset:0n,property:"",options:[]}}arbitraryProperty(e){return{...this.create("utilities"),arbitrary:1n,property:e}}forVariant(e,t=0){let r=this.variantOffsets.get(e);if(r===void 0)throw new Error(`Cannot find offset for unknown variant ${e}`);return{...this.create("variants"),variants:r<<BigInt(t)}}applyVariantOffset(e,t,r){return r.variant=t.variants,{...e,layer:"var...