import { TreeEmit } from '../virtual-tree';
import type { TreeProps, TreeNodeData, TreeKey, TreeNode, TreeData } from '../types';
export declare function useTree(props: TreeProps, emit: TreeEmit): {
    tree: any;
    flattenTree: any;
    isNotEmpty: any;
    getKey: (node: TreeNodeData) => TreeKey;
    getChildren: (node: TreeNodeData) => TreeNodeData[];
    toggleExpand: (node: TreeNode) => void;
    toggleCheckbox: (node: TreeNode, isChecked: boolean, nodeClick?: boolean) => void;
    isExpanded: (node: TreeNode) => boolean;
    isChecked: (node: TreeNode) => any;
    isIndeterminate: (node: TreeNode) => any;
    isDisabled: (node: TreeNode) => boolean;
    isCurrent: (node: TreeNode) => boolean;
    isForceHiddenExpandIcon: (node: TreeNode) => boolean;
    handleNodeClick: (node: TreeNode, e: MouseEvent) => void;
    handleNodeCheck: (node: TreeNode, checked: boolean) => void;
    getCurrentNode: () => TreeNodeData | undefined;
    getCurrentKey: () => TreeKey | undefined;
    setCurrentKey: (key: TreeKey | undefined) => void;
    getChecked: (leafOnly?: boolean) => {
        keys: TreeKey[];
        nodes: TreeNodeData[];
    };
    getHalfChecked: () => {
        nodes: TreeNodeData[];
        keys: TreeKey[];
    };
    setChecked: (key: TreeKey, isChecked: boolean) => void;
    setCheckedKeys: (keys: TreeKey[]) => void;
    filter: (query: string) => void;
    setData: (data: TreeData) => void;
    setCheckedAll: () => void;
    getTreeNodes: () => any;
};