Barryvdh\Snappy\ImageWrapper::output PHP Method

    public function output()
    {
        if ($this->html) {
            return $this->snappy->getOutputFromHtml($this->html, $this->options);
        }
        if ($this->file) {
            return $this->snappy->getOutput($this->file, $this->options);
        }
        throw new \InvalidArgumentException('Image Generator requires a html or file in order to produce output.');
    }