import type { VirtualTableColumn, VirtualTableColumnCtx, TableStore } from '../types';
import type { Ref } from 'vue';
export declare function useColumns<T>({ rootWidth, columns, store, }: {
    rootWidth: Ref<number>;
    columns: Ref<VirtualTableColumn<T>[]>;
    store: Ref<TableStore>;
}): {
    selectable: import("vue").ComputedRef<((row: import("element-plus/es/components/table/src/table/defaults.mjs").DefaultRow, index: number) => boolean) | undefined>;
    columnsConfig: import("vue").ComputedRef<{
        tableColumnsCtxs: VirtualTableColumnCtx<any>[];
        allColumnsCtxs: VirtualTableColumnCtx<any>[];
        columnRows: VirtualTableColumnCtx<any>[][];
        leafColumns: VirtualTableColumnCtx<any>[];
        maxLevel: number;
    }>;
    expandColumn: import("vue").ComputedRef<VirtualTableColumnCtx<any> | undefined>;
    hasFixedColumns: import("vue").ComputedRef<boolean>;
};