import type { Stack } from '@contentstack/delivery-sdk';
/**
 * Personalize SDK instance (client-side only).
 * Provides instance methods: set(), triggerImpression(), triggerImpressions(),
 * triggerEvent(), setUserId(), getUserId(), getVariants(), getVariantAliases().
 * Returns null on server — server personalization is handled by the middleware.
 */
export interface PersonalizeSdkInstance {
    set: (attributes: Record<string, any>) => Promise<void>;
    triggerImpression: (experienceShortUid: string) => Promise<void>;
    triggerImpressions: (options: {
        experienceShortUids?: string[];
        aliases?: string[];
    }) => Promise<void>;
    triggerEvent: (eventKey: string) => Promise<void>;
    setUserId: (userId: string, options?: {
        preserveUserAttributes?: boolean;
    }) => Promise<void>;
    getUserId: () => string;
    getVariants: () => Record<string, string | null>;
    getVariantAliases: () => string[];
    getVariantParam: () => string;
    getActiveVariant: (experienceShortUid: string) => string | null;
    addStateToResponse: (response: Response) => Promise<void>;
}
export interface ContentstackContext {
    stack: Stack;
    livePreviewEnabled: boolean;
    editableTags: boolean;
    variantAlias?: {
        value: string;
    };
    ContentstackLivePreview: any;
    /** Personalize SDK instance — available on client only, null on server */
    personalizeSdk: PersonalizeSdkInstance | null;
    VB_EmptyBlockParentClass: string;
}
/**
 * Typed accessor for the Contentstack plugin provides.
 * Avoids repeated `useNuxtApp().$contentstack as { ... }` casts.
 */
export declare function useContentstack(): ContentstackContext;