/// <reference types="node" />
import { Transform } from 'stream';
/**
 * Scans the object stream
 */
export default class Scanner extends Transform {
    private _scannerCallback;
    private readonly _abortOnError;
    /**
     * @constructor
     * @param scannerCallback
     * @param abortOnError True if error in filtering should emit error, false otherwise
     */
    constructor(scannerCallback: Function, abortOnError?: boolean);
    /**
     * https://nodejs.org/api/stream.html#stream_transform_transform_chunk_encoding_callback
     * @override
     */
    _transform(chunk: Buffer | string | any, encoding: string, callback: Function): void;
}