import { ConvoHashCacheBase } from "./ConvoHashCacheBase.js";
import { ConvoCompletionMessage } from "./convo-types.js";
/**
 * Caches conversation responses in memory
 */
export declare class ConvoMemoryCache extends ConvoHashCacheBase {
    private readonly _cache;
    constructor();
    getMessagesByKey(key: string): ConvoCompletionMessage[] | null | undefined | Promise<ConvoCompletionMessage[] | null | undefined>;
    cacheMessagesByKey(key: string, messages: ConvoCompletionMessage[]): void;
}