[FIXME]</a></h3>
<blockquote>
<p><strong>[FIXME]</strong> Flesh this out with examples; explain what a &quot;coherent
section&quot; is with examples.</p>

<p>The module hierarchy defines both the public and internal API of your module.
Breaking related functionality into submodules makes it understandable to both
users and contributors to the module.</p>
</blockquote>

<h3 id='place-modules-in-their-own-file-fixme-needs-rfc' class='section-header'><a href='#place-modules-in-their-own-file-fixme-needs-rfc'>P