import type { Ref } from 'vue';
export type { ScrollToOptions } from '@tanstack/vue-virtual';
export declare function useVirtualScroll(settings: {
    scrollEl: HTMLElement | null | Ref<HTMLElement | null>;
    count: number | Ref<number>;
    estimateSize: string | number | ((index: number) => number) | Ref<string | number | ((index: number) => number)>;
    getItemKey?: (index: number) => number | string | bigint;
    overscan?: string | number | Ref<string | number>;
    horizontal?: boolean | Ref<boolean>;
}): {
    virtualizer: Ref<import("@tanstack/vue-virtual").Virtualizer<HTMLElement, Element>, import("@tanstack/vue-virtual").Virtualizer<HTMLElement, Element>>;
    virtualItems: globalThis.ComputedRef<import("@tanstack/vue-virtual").VirtualItem[]>;
    virtualItemsLength: globalThis.ComputedRef<number>;
    firstVirtualItem: globalThis.ComputedRef<import("@tanstack/vue-virtual").VirtualItem>;
    lastVirtualItem: globalThis.ComputedRef<import("@tanstack/vue-virtual").VirtualItem>;
    totalSize: globalThis.ComputedRef<number>;
    startSpacer: globalThis.ComputedRef<{
        show: boolean;
        size: number;
        style: {
            width: string;
        } | {
            height: string;
        };
    }>;
    endSpacer: globalThis.ComputedRef<{
        show: boolean;
        size: number;
        style: {
            width: string;
        } | {
            height: string;
        };
    }>;
};