public function line($line)
    {
        return $this->with($line);
    }

    /**
     * Add a line of text to the notification.
     *
     * @param  \Illuminate\Notifications\Action|string|array  $line
     * @return $this
     */
    public function with($line)
    {
        if ($line instanceof Action) {
            $this->action($line->text, $line->url);
        } elseif (! $this->actionText) {
            $this->introLines[] = $this->formatLine($line);
        } else {
            $this->outroLines[] = $this->formatLine($line);
        }

        return $this;
    }

 echo "hello world";