docs: void fakeResponse(
          StatusLine statusline, 
          HeaderGroup responseheaders,
          HttpConnection conn,
          InputStream responseStream
      ) {
          // set used so that the response can be read
          this.used = true;
          this.statusLine = statusline;
          this.responseHeaders = responseheaders;
          this.responseConnection = conn;
          this.responseBody = null;
          this.responseStream = responseStream;
      }