message: implement writableStream stubs
diff: return this;
  }
  + public eventNames() {
  + return [];
  + }
  +
  + public prependListener() {
  + return this;
  + }
  +
  + public prependOnceListener() {
  + return this;
  + }
  +
  public removeListener(event: string, listener: Function): this {
  return this;
  }
  