ns to manipulate it. Direct access to the store is not exposed.</p></div></div><div class="odoc-spec"><div class="spec module anchored" id="module-Logging"><a href="#module-Logging" class="anchor"></a><code><span><span class="keyword">module</span> <a href="Logging/index.html">Logging</a></span><span> : <span class="keyword">sig</span> ... <span class="keyword">end</span></span></code></div><div class="spec-doc"><p>log messages at different levels of verbosity</p></div></div><div class="odoc-spec"><div clas