import { type GitObject } from './object.ts';
export type Refs = Record<string, string>;
export declare const listRefs: (url: string) => Promise<Refs>;
export declare const HAVES = 256;
export declare const havesFrom: (tips: readonly string[], held: (id: string) => Promise<GitObject | null>) => Promise<string[]>;
export declare const fetchPack: (url: string, wants: readonly string[], held: (id: string) => Promise<GitObject | null>, haves?: readonly string[]) => Promise<Map<string, GitObject>>;