5;&gt;</span> <span>?&#8288;headers:<span><span>(string * string)</span> list</span></span> <span>&#45;&gt;</span> <span>?&#8288;error:<a href="../../EzReq_S/index.html#type-error_handler">EzReq_S.error_handler</a></span> <span>&#45;&gt;</span> <span>(string <span>&#45;&gt;</span> unit)</span> <span>&#45;&gt;</span> unit</code></dt><dt class="spec value" id="val-post"><a href="#val-post" class="anchor"></a><code><span class="keyword">val</span> post : <span>?&#8288;meth:<a href="../../EzAPI/Meth/index.html#