import { Ref } from 'vue';
import { WaterfallProps } from '../types/waterfall';
import { Nullable } from '../types/util';
export declare function useLayout(props: WaterfallProps, colWidth: Ref<number>, cols: Ref<number>, offsetX: Ref<number>, waterfallWrapper: Ref<Nullable<HTMLElement>>): {
    wrapperHeight: Ref<number, number>;
    layoutHandle: () => Promise<false | undefined>;
};