import { GenericFilehandle } from 'generic-filehandle2';
import GziIndex from './gziIndex';
export default class BgzFilehandle {
    filehandle: GenericFilehandle;
    gzi: GziIndex;
    constructor({ filehandle, path, gziFilehandle, gziPath, }: {
        filehandle?: GenericFilehandle;
        path?: string;
        gziFilehandle?: GenericFilehandle;
        gziPath?: string;
    });
    _readAndUncompressBlock(compressedPosition: number, nextCompressedPosition: number): Promise<Uint8Array<ArrayBuffer>>;
    read(length: number, position: number): Promise<Uint8Array<ArrayBuffer>>;
}