Possible values for WunderbaumNode.addChildren.
Optional
(@internal Internal use, do not set! )
Set node.expanded = true according to tree.options.minExpandLevel. This does not load lazy nodes.
node.expanded = true
true Copy
true
Insert children before this node (or index)
undefined or null: append as last child Copy
undefined or null: append as last child
Possible values for WunderbaumNode.addChildren.