import type { MaybeRef } from 'vue';
import type { DefaultRow } from 'element-plus/es/components/table/src/table/defaults';
export declare function useExpand({ rowKey, onExpandChange, }: {
    rowKey: MaybeRef<number | symbol | string>;
    onExpandChange?: (row: DefaultRow, expanded: boolean, expandedRows: DefaultRow[]) => void;
}): {
    expandedRowKeys: import("vue").ComputedRef<any[]>;
    expandedRows: import("vue").Ref<DefaultRow[], DefaultRow[]>;
    toggleRowExpansion: (row: DefaultRow, expanded?: boolean) => void;
    isExpanded: (row: DefaultRow) => boolean;
};