/a> <span>&#45;&gt;</span> Yojson.Safe.t</code></dt><dt class="spec value" id="val-conf_of_yojson"><a href="#val-conf_of_yojson" class="anchor"></a><code><span class="keyword">val</span> conf_of_yojson : Yojson.Safe.t <span>&#45;&gt;</span> <span><a href="index.html#type-conf">conf</a> Ppx_deriving_yojson_runtime.error_or</span></code></dt></dl><div class="spec module" id="module-Make"><a href="#module-Make" class="anchor"></a><code><span class="keyword">module</span> <a href="Make/index.html">Make</a> : <s