/// <reference types="node" />
import { promises as fs } from 'fs';
export declare class PartialStreamIterator implements AsyncIterableIterator<Buffer> {
    private readonly fd;
    private position;
    private bytesWanted;
    constructor(fd: fs.FileHandle, position: number, bytesWanted: number);
    private buffer;
    next(): Promise<IteratorResult<Buffer>>;
    [Symbol.asyncIterator](): this;
}