code: function genSection(tag, section) {
      if (!section) {
          return '';
      }
      const attrs = genAttrs(section.attrs);
      const content = section.content || '';
      return `<${tag}${attrs}>${content}</${tag}>\n`;
  }
docs: Given a tag and a vue-template-compiler section, re-generate the Single File Component structure  Example: genSection('template', { attrs: { foo: 'bar' }, content: '<h1>Hello World!</h1>' })  => '<template foo="bar"><h1>Hello World</h1></template>'