import type { Context } from '../context.js';
export interface CacheEntry<T = any> {
    data: T;
    timestamp: number;
    ttl?: number;
}
export interface ResponseCacheEntry {
    status: number;
    headers: Record<string, string>;
    body: any;
}
export interface CacheStore {
    get<T>(key: string): Promise<T | null>;
    set<T>(key: string, value: T, ttl?: number): Promise<void>;
    delete(key: string): Promise<boolean>;
    clear(): Promise<void>;
    has(key: string): Promise<boolean>;
    size(): Promise<number>;
}
export interface CacheOptions {
    store?: 'memory' | 'redis';
    redis?: any;
    defaultTtl?: number;
    keyGenerator?: (ctx: Context) => string;
    skipCache?: (ctx: Context) => boolean;
    cacheHeaders?: boolean;
    compression?: boolean;
    maxSize?: number;
}
export declare function cachePlugin(options?: CacheOptions): {
    middleware: (ctx: Context, next: () => Promise<any>) => Promise<any>;
    get: (key: string) => Promise<unknown>;
    set: (key: string, value: any, ttl?: number) => Promise<void>;
    delete: (key: string) => Promise<boolean>;
    clear: () => Promise<void>;
    has: (key: string) => Promise<boolean>;
    size: () => Promise<number>;
    stats: () => {
        hits: number;
        misses: number;
        sets: number;
        deletes: number;
    };
};
export { cachePlugin as cache };
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