The list of selected ids within the tree. If you only want to allow a
single item to be selected at a time within a tree, keep this as either an
empty list (no selections) or a single itemId.
A function to call that will update the selectedIds to include itemId
of the newly selected tree item. This will be triggered when:
Note: If you are using the useTreeItemSelection hook, this will always
cause the selectedIds to be a list of just the selected itemId unless
the multiSelect (second argument) is enabled.
A function to  call that will update the selectedIds for "batch"
selection updates. This will always be called with a unique list of
itemIds that contained the previous itemIds including the new
itemIds. This will only be called when the multiSelect prop has been
enabled and:
Shift + Clicks items within the treeControl+Shift+Home or
Control+Shift+EndGenerated using TypeDoc
Boolean if multiple items within the tree can be selected at once.