addNode method
Implementation
String addNode(Object node, {int? layerIndex}) {
if (node is NodeSpec) {
return _core.commands.writeAddNode(node, layerIndex: layerIndex);
}
if (node is SceneNode) {
return _core.commands.writeAddNode(
_nodeSpecFromLegacyNode(node),
layerIndex: layerIndex,
);
}
throw ArgumentError.value(node, 'node', 'Expected NodeSpec or SceneNode.');
}