n</code></p><p>Get an upper bound on the number of bytes of plain-text the decrypt method will write for a given input message length. The actual size could be different due to padding.</p><p>The input message buffer is destroyed.</p><p>Returns olm_error() on failure.</p></dd></dl><dl><dt class="spec value" id="val-group_decrypt"><a href="#val-group_decrypt" class="anchor"></a><code><span class="keyword">val</span> group_decrypt : <span><a href="../Types/InboundGroupSession/index.html#type-t">Types.InboundG