</span> <span><span><span>(<span class="type-var">'output</span>, <span class="type-var">'error</span>)</span> <a href="index.html#type-api_result">api_result</a></span> Lwt.t</span></code></dt><dt class="spec value" id="val-post2"><a href="#val-post2" class="anchor"></a><code><span class="keyword">val</span> post2 : <span>?&#8288;headers:<span><span>(string * string)</span> list</span></span> <span>&#45;&gt;</span> <span>?&#8288;params:<span><span>(<a href="../../../EzAPI/Param/index.html#type-t">EzAPI.Pa