in platf-skia/src/commonMain/kotlin/org/jetbrains/letsPlot/skia/mapping/svg/SvgSvgElementMapper.kt [33:40]
override fun onAttach(ctx: MappingContext) {
super.onAttach(ctx)
if (!source.isAttached()) {
throw IllegalStateException("Element must be attached")
}
source.container().setPeer(peer)
}