import { Cache, type CacheQueryOptions } from "./index.js";
/**
 * Handle cache response/error messages from main thread.
 * Called by worker.ts when receiving cache:response or cache:error messages.
 */
export declare function handleCacheResponse(message: any): void;
/**
 * Configuration options for PostMessageCache
 */
export interface PostMessageCacheOptions {
    /** Timeout for cache operations in milliseconds (default: 30000) */
    timeout?: number;
}
/**
 * Worker-side cache that forwards operations to main thread via postMessage.
 * Used for MemoryCache in multi-worker environments so all workers share state.
 */
export declare class PostMessageCache extends Cache {
    #private;
    constructor(name: string, options?: PostMessageCacheOptions);
    match(request: RequestInfo | URL, options?: CacheQueryOptions): Promise<Response | undefined>;
    put(request: RequestInfo | URL, response: Response): Promise<void>;
    delete(request: RequestInfo | URL, options?: CacheQueryOptions): Promise<boolean>;
    keys(request?: RequestInfo | URL, options?: CacheQueryOptions): Promise<readonly Request[]>;
    clear(): Promise<void>;
}