public function unsetMinify()
    {
        $this->pug->removeKeyword('assets');
        $this->pug->removeKeyword('concat');
        $this->pug->removeKeyword('concat-to');
        $this->pug->removeKeyword('minify');
        $this->pug->removeKeyword('minify-to');
        $this->minify = null;

        return $this;
    }