lise an encryption object using the supplied memory The supplied memory must be at least olm_pk_encryption_size() bytes</p></dd></dl><dl><dt class="spec value" id="val-pk_encryption_last_error"><a href="#val-pk_encryption_last_error" class="anchor"></a><code><span class="keyword">val</span> pk_encryption_last_error : <span><a href="../Types/PkEncryption/index.html#type-t">Types.PkEncryption.t</a> Ctypes_static.ptr</span> <span>&#45;&gt;</span> <span>char Ctypes_static.ptr</span></code></dt><dd><p><code>pk_e