import type { Overrides } from 'c15t';
/**
 * Creates a stable cache key for SSR init responses.
 *
 * @remarks
 * This is framework-agnostic and can be used by wrappers (e.g. Next.js)
 * to align cache key construction with the headers/override semantics used
 * for SSR init fetching.
 *
 * @param normalizedURL - Normalized backend URL for /init
 * @param headers - Request headers
 * @param overrides - Optional location/language overrides
 * @returns A stable JSON string key
 *
 * @public
 */
export declare function createSSRInitCacheKey({ normalizedURL, headers, overrides, }: {
    normalizedURL: string;
    headers: Headers;
    overrides?: Overrides;
}): string;