iant constructor anchored"><a href="#type-level.FATAL" class="anchor"></a><code><span>| </span><span><span class="constructor">FATAL</span></span></code><div class="def-doc"><span class="comment-delim">(*</span><p>Type definition of log levels, priority is from low to high. Using <code>set_level</code> function to set global logging level to high one can mask the output from low level logging.</p><span class="comment-delim">*)</span></div></li></ol></div></div><h6 id="configuration-functions"><a href="#conf