/// <reference types="node" />
export default class StreamOutput {
    readonly type: 'stdout' | 'stderr';
    readonly stream: NodeJS.WriteStream;
    static logToFile(msg: string, logfile: string): void;
    private static startOfLine;
    readonly output: string;
    constructor(type: 'stdout' | 'stderr', stream: NodeJS.WriteStream);
    write(msg?: string, options?: {
        log?: boolean;
    }): void;
    log(data?: string, ...args: any[]): void;
    writeLogFile(msg: string, withTimestamp: boolean): void;
    readonly logfile: string | undefined;
    private timestamp(msg);
}