;</span> Bitstring.t</code></dt><dd><p><code>bitstring_of_addr addr</code> returns the bitstring of an address <code>addr</code></p></dd></dl><dl><dt class="spec value" id="val-serialize_header"><a href="#val-serialize_header" class="anchor"></a><code><span class="keyword">val</span> serialize_header : <a href="index.html#type-header">header</a> <span>&#45;&gt;</span> string</code></dt><dd><p><code>serialize_header h</code> serializes the message header <code>h</code></p></dd></dl><dl><dt class="spec value"