import type { NuxtAppManifestMeta } from 'nuxt/app';
import type { ChunksOutdatedPayload } from '../../types.js';
export interface UseSkewProtectionOptions {
    /**
     * Lazy connection mode: don't auto-connect on mount.
     * When false (default), connections are established automatically on mount.
     * When true, users must call connect() manually.
     * @default false
     */
    lazy?: boolean;
}
export declare function useSkewProtection(options?: UseSkewProtectionOptions): {
    manifest: import("vue").Ref<NuxtAppManifestMeta | undefined, NuxtAppManifestMeta | undefined>;
    clientVersion: any;
    serverVersion: import("vue").ComputedRef<string | undefined>;
    isConnected: import("vue").ComputedRef<boolean>;
    isOnline: Readonly<import("vue").ShallowRef<boolean, boolean>>;
    isAppOutdated: import("vue").ComputedRef<boolean>;
    isRollback: import("vue").ComputedRef<boolean>;
    connect: () => void;
    disconnect: () => void;
    onCurrentChunksOutdated: (callback: (payload: ChunksOutdatedPayload) => void | Promise<void>) => () => void;
    onAppOutdated: (callback: (manifest?: NuxtAppManifestMeta) => void | Promise<void>) => () => void;
    checkForUpdates: () => Promise<void>;
    simulateUpdate(): Promise<void>;
};