CSS: Selector for only Parents who have Children?

Question

There is a similar question available, but it is more than seven years old in the meanwhile.

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Is there a CSS selector available that can be exclusively used for <li> parents who have <ul> children inside?

Example:

<ul class="level_1">
        <li> standard li element </li>
        <li> element that contains children  <!-- selector for this parent -->
                <ul class="level_2">
                    <li> children </li>
                    <li> children </li>
                </ul>
        </li>
        <li> standard li element </li>
        <li> element that contains children <!-- selector for this parent -->
                <ul class="level_2">
                    <li> children </li>
                    <li> children </li>
                </ul>
        </li>
</ul>