export declare class CkTreeNode {
    data: any;
    id: any;
    pid: any;
    nodeId: string;
    parent: CkTreeNode;
    children: CkTreeNode[];
    _expanded: boolean;
    expanded: boolean;
    readonly level: number;
    readonly leaf: boolean;
    constructor(data: any, id: any, pid: any);
    isHidden(): boolean;
    toggle(): void;
    getFullValueByKey(key: string): string;
    show(): void;
}