The following code is displayed as the "Good" example of role-supports-aria-props rule :

<ul role="radiogroup" aria-required aria-labelledby="foo">
    <li tabIndex="-1" role="radio" aria-checked="false">Rainbow Trout</li>
    <li tabIndex="-1" role="radio" aria-checked="false">Brook Trout</li>
    <li tabIndex="0" role="radio" aria-checked="true">Lake Trout</li>
</ul>

However, this code does not work as intended, because the aria-required attribute has a "false" default value: it should be written as aria-required="true" to work properly with assistive technology.

I would recommend that the documentation be updated with a working example.