declare type NodeKey = string | number;
interface TreeNodeOptions {
    nodeKey: NodeKey;
    name: string;
    level?: number;
    loading?: boolean;
    hasChildren?: boolean;
    children?: TreeNodeOptions[];
    parentKey?: NodeKey | null;
}
interface TreeInstance {
    getSelectedNode: () => TreeNodeOptions | undefined;
    getCheckedNodes: () => TreeNodeOptions[];
    getHalfCheckedNodes: () => TreeNodeOptions[];
    getExpandedKeys: () => NodeKey[];
}
interface TreeNodeInstance {
    rawNode: TreeNodeOptions;
    halfChecked: () => boolean;
}
declare type TypeWithNull<T> = T | null;
declare type TypeWithUndefined<T> = T | undefined;
export { TreeNodeOptions, NodeKey, TreeInstance, TreeNodeInstance, TypeWithUndefined, TypeWithNull };