code: function getDescriptions(comments) {
    var ret = {
      component: comments.description || null,
      props: {}
    };
    comments.tags.forEach(function (tag) {
      if (tag.name) {
        ret.props[tag.name] = tag.description || null;
      }
    });
    return ret;
  }
docs: (comments: t.Object) => { component, props: {} }