&#39;s not valid</li>
<li><code>satisfies(version, range)</code>: Return true if the version satisfies the
range.</li>
<li><code>maxSatisfying(versions, range)</code>: Return the highest version in the list
that satisfies the range, or <code>null</code> if none of them do.</li>
<li><code>gtr(version, range)</code>: Return <code>true</code> if version is greater than all the
versions possible in the range.</li>
<li><code>ltr(version, range)</code>: Return <code>true</code> if version is less than all the
ver