import type { VNode } from 'vue';
export type CascadeNodeValue = string | number;
export type CascadeNodePathValue = CascadeNodeValue[];
export type CascadeValue = CascadeNodeValue | CascadeNodePathValue | (CascadeNodeValue | CascadeNodePathValue)[];
export type CascadeConfig = Required<CascadeProps>;
export declare enum ExpandTrigger {
    CLICK = "click",
    HOVER = "hover"
}
export type isDisabled = (data: CascadeOption, node: Node) => boolean;
export type isLeaf = (data: CascadeOption, node: Node) => boolean;
export type Resolve = (dataList?: CascadeOption[]) => void;
export type LazyLoad = (node: Node, resolve: Resolve) => void;
export type RenderLabel = ({ node, data }: {
    node: any;
    data: any;
}) => VNode | VNode[];
export interface CascadeOption extends Record<string, unknown> {
    label?: string;
    value?: CascadeNodeValue;
    children?: CascadeOption[];
    disabled?: boolean;
    leaf?: boolean;
}
export interface CascadeProps {
    expandTrigger?: ExpandTrigger;
    multiple?: boolean;
    checkStrictly?: boolean;
    emitPath?: boolean;
    lazy?: boolean;
    lazyLoad?: LazyLoad;
    value?: string;
    label?: string;
    children?: string;
    disabled?: string | isDisabled;
    leaf?: string | isLeaf;
    hoverThreshold?: number;
}
export type Nullable<T> = null | T;
type ChildrenData = CascadeOption[] | undefined;
declare class Node {
    readonly data: Nullable<CascadeOption>;
    readonly config: CascadeConfig;
    readonly parent?: Node | undefined;
    readonly root: boolean;
    readonly uid: number;
    readonly level: number;
    readonly value: CascadeNodeValue;
    readonly label: string;
    readonly pathNodes: Node[];
    readonly pathValues: CascadeNodePathValue;
    readonly pathLabels: string[];
    childrenData: ChildrenData;
    children: Node[];
    text: string;
    loaded: boolean;
    checked: boolean;
    indeterminate: boolean;
    loading: boolean;
    constructor(data: Nullable<CascadeOption>, config: CascadeConfig, parent?: Node | undefined, root?: boolean);
    get isDisabled(): boolean;
    get isLeaf(): boolean;
    get valueByOption(): CascadeNodeValue | CascadeNodePathValue;
    get labelByOption(): string | string[];
    get nodeByOption(): Nullable<CascadeOption> | Nullable<CascadeOption>[];
    appendChild(childData: CascadeOption): Node;
    calcText(allLevels: boolean, separator: string): string;
    broadcast(event: string, ...args: unknown[]): void;
    emit(event: string, ...args: unknown[]): void;
    onParentCheck(checked: boolean): void;
    onChildCheck(): void;
    setCheckState(checked: boolean): void;
    doCheck(checked: boolean): void;
}
export default Node;