g_up" class="anchor"></a><code><span class="keyword">val</span> of_string_up : string <span>&#45;&gt;</span> <a href="index.html#type-t">t</a></code></dt><dt class="spec value" id="val-of_string_down"><a href="#val-of_string_down" class="anchor"></a><code><span class="keyword">val</span> of_string_down : string <span>&#45;&gt;</span> <a href="index.html#type-t">t</a></code></dt><dt class="spec value" id="val-to_string"><a href="#val-to_string" class="anchor"></a><code><span class="keyword">val</span> to_str