/// <reference types="node" />
import { Logger, LogLevelDescType } from 'loglevel-colored-prefix';
import { Transform } from 'stream';
import { FastaUtils } from './FastaUtils';
/**
 * Transform stream takes fasta chunks and push BioSeq objects
 *
 * @class FastaParserStream
 * @extends {Transform}
 */
declare class FastaParserStream extends Transform {
    protected buffer: string;
    protected readonly logLevel: LogLevelDescType;
    protected readonly log: Logger;
    protected readonly fu: FastaUtils;
    constructor(logLevel?: LogLevelDescType);
    _transform(chunk: Buffer, enc: any, next: () => void): void;
    _flush(next: () => void): void;
}
export { FastaParserStream };