ded to hold the fallback key as returned by olm_account_fallback_key.</p></dd></dl><dl><dt class="spec value" id="val-account_fallback_key"><a href="#val-account_fallback_key" class="anchor"></a><code><span class="keyword">val</span> account_fallback_key : <span><a href="../Types/Account/index.html#type-t">Types.Account.t</a> Ctypes_static.ptr</span> <span>&#45;&gt;</span> <span>unit Ctypes_static.ptr</span> <span>&#45;&gt;</span> Unsigned.size_t <span>&#45;&gt;</span> Unsigned.size_t</code></dt><dd><p><cod