d.size_t</code></dt><dd><p><code>init_outbound_group_session sess random random_len</code></p><p>Start a new outbound group session. Returns olm_error() on failure. On failure last_error will be set with an error code. The last_error will be NOT_ENOUGH_RANDOM if the number of random bytes was too small.</p></dd></dl><dl><dt class="spec value" id="val-group_encrypt_message_length"><a href="#val-group_encrypt_message_length" class="anchor"></a><code><span class="keyword">val</span> group_encrypt_message_lengt