import { ProviderResponse } from '../../../types/chat';
import { OpenRouterCacheKey } from './types';
export declare class OpenRouterCache {
    private cache;
    set(key: OpenRouterCacheKey, value: ProviderResponse): void;
    get(key: OpenRouterCacheKey): ProviderResponse | undefined;
    has(key: OpenRouterCacheKey): boolean;
    clear(): void;
    private stringifyKey;
}