5S3 9 4 9zm9-3h-1v1h1c1 0 2 1.22 2 2.5S13.98 12 13 12H9c-.98 0-2-1.22-2-2.5 0-.83.42-1.64 1-2.09V6.25c-1.09.53-2 1.84-2 3.25C6 11.31 7.55 13 9 13h4c1.45 0 3-1.69 3-3.5S14.5 6 13 6z"></path></svg></a>optional</h5>
<p>If true then this dependency is either an optional dependency ONLY of the
top level module or a transitive dependency of one.  This is false for
dependencies that are both an optional dependency of the top level and a
transitive dependency of a non-optional dependency of the top level.</p>
<p>Al