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const NavigationTree: React.FC = (props: NavigationTreeProps) => {
const nodeLoader = usePresentationNodeLoader({
imodel: props.iModelConnection,
rulesetId: props.rulesetId,
pageSize: 20,
});
const modelSource = useModelSource(nodeLoader)!;
const eventHandler = React.useMemo(() => new TreeEventHandler({ modelSource, nodeLoader, collapsedChildrenDisposalEnabled: true }), [modelSource, nodeLoader]);
const unifiedSelectionEventHandler = useControlledTreeUnifiedSelection(modelSource, eventHandler, nodeLoader.getDataProvider());
const visibleNodes = useVisibleTreeNodes(modelSource);
return (