/// <reference types="node" />
import { promises as fs } from 'fs';
export declare function writeHeader(fd: fs.FileHandle, start: number, length: number): Promise<number>;
export declare function readHeader(fd: fs.FileHandle): Promise<{
    start: number;
    length: number;
}>;
export interface PkgIndex {
    name: string;
    entries: {
        [name: string]: {
            start: number;
            length: number;
        };
    };
}