span class="keyword">val</span> error_desc_get_dotty : <span><a href="#type-error_desc">error_desc</a> <span class="arrow">&#45;&gt;</span></span> <span>string option</span></span></code></div></div><p>Description functions for error messages</p><div class="odoc-spec"><div class="spec type anchored" id="type-deref_str"><a href="#type-deref_str" class="anchor"></a><code><span><span class="keyword">type</span> deref_str</span></code></div><div class="spec-doc"><p>dereference strings used to explain a derefere