import type { NanoMemoryInput, NanoMemorySnapshot, NanoModelMessage } from "./types.js";
export declare function createNanoMemory(input?: NanoMemoryInput): NanoMemorySnapshot;
export declare function mergeMemory(left: NanoMemorySnapshot, right?: NanoMemoryInput): NanoMemorySnapshot;
export declare function memoryToText(memory: NanoMemorySnapshot): string;
export declare function summarizeMessages(messages?: NanoModelMessage[], maxRecentMessages?: number): {
    recent: NanoModelMessage[];
    dropped: string[];
};