ince the link target will also
be included in the lockfile.</p>
</li>
<li>
<p>dev, optional, devOptional: If the package is strictly part of the
<code>devDependencies</code> tree, then <code>dev</code> will be true.  If it is strictly part
of the <code>optionalDependencies</code> tree, then <code>optional</code> will be set.  If it
is both a <code>dev</code> dependency <em>and</em> an <code>optional</code> dependency of a non-dev
dependency, then <code>devOptional</code> will be set.  (An <code>optional</co