import { _PdfBaseStream } from '../base-stream';
import { _PdfDecodeStream } from '../decode-stream';
import { _PdfDictionary } from '../pdf-primitives';
/**
 * Provides a JBIG2 decoding stream that reads from a base stream and outputs inverted bitmap data.
 *
 * @private
 */
export declare class _PdfJbig2Stream extends _PdfDecodeStream {
    stream: _PdfBaseStream;
    private maybeLength;
    private params;
    buffer: any;
    bufferLength: number;
    constructor(stream: _PdfBaseStream, maybeLength: number, params: _PdfDictionary);
    readonly bytes: Uint8Array;
    readBlock(): void;
    decodeImage(bytes?: Uint8Array): Uint8Array;
}