Session.t</a> Ctypes_static.ptr</span> <span>&#45;&gt;</span> Unsigned.size_t</code></dt><dd><p><code>export_inbound_group_session_length sess</code></p><p>Get the number of bytes returned by olm_export_inbound_group_session()</p></dd></dl><dl><dt class="spec value" id="val-export_inbound_group_session"><a href="#val-export_inbound_group_session" class="anchor"></a><code><span class="keyword">val</span> export_inbound_group_session : <span><a href="../Types/InboundGroupSession/index.html#type-t">Types.Inbou