import type { Ref } from 'vue';
import type { TreeNode } from '../type';
export declare const useChecked: ({ checked, nodeValueMap, nodeKeyMap, checkStrictly }: {
    checked: Ref<(string | number)[] | undefined>;
    nodeValueMap: Map<string | number, TreeNode>;
    nodeKeyMap: Map<string | number, TreeNode>;
    checkStrictly: Ref<boolean>;
}) => {
    checkedNodeKeys: import("vue").ComputedRef<string[]>;
    toggleNodeCheckStatus: (node: TreeNode, checked: boolean) => void;
};