import { MaybeRefOrGetter, Ref } from 'vue';
interface RuntimeStorage {
    getItem(key: string): string | null;
    setItem(key: string, value: string): void;
}
interface RuntimeEventTarget {
    addEventListener(type: 'vite:preloadError', listener: EventListener): void;
    removeEventListener(type: 'vite:preloadError', listener: EventListener): void;
}
interface RuntimeVisibilityTarget {
    addEventListener(type: 'visibilitychange', listener: EventListener): void;
    removeEventListener(type: 'visibilitychange', listener: EventListener): void;
}
export interface RuntimeRevisionResponse {
    frontend_revision?: string | null;
}
export interface RuntimeAlignmentOptions {
    /** Revision embedded in the HTML that booted this tab. */
    currentRevision?: MaybeRefOrGetter<string | null | undefined>;
    /** Browser visibility seam. */
    visibility?: () => DocumentVisibilityState;
    /** Current location seam. */
    currentUrl?: () => string;
    /** Location replacement seam. */
    replace?: (url: string) => void;
    /** Per-tab recovery guard storage. */
    storage?: RuntimeStorage | null;
    /** Vite preload error source. */
    eventTarget?: RuntimeEventTarget | null;
    /** Browser visibility event source. */
    visibilityTarget?: RuntimeVisibilityTarget | null;
}
export interface UseRuntimeAlignmentReturn {
    updateAvailable: Readonly<Ref<boolean>>;
    nextRevision: Readonly<Ref<string | null>>;
    observe: (response: RuntimeRevisionResponse | unknown) => void;
    reload: () => void;
    recoverMissingChunk: () => void;
}
/** Keep a loaded MINT frontend aligned with the backend revision serving its scope. */
export declare function useRuntimeAlignment(options?: RuntimeAlignmentOptions): UseRuntimeAlignmentReturn;
/** Read the revision injected into the HTML that started this browser tab. */
export declare function getInjectedFrontendRevision(): string | null;
export {};