/a><code><span class="keyword">val</span> clear_pk_signing : <span><a href="../Types/PkSigning/index.html#type-t">Types.PkSigning.t</a> Ctypes_static.ptr</span> <span>&#45;&gt;</span> Unsigned.size_t</code></dt><dd><p><code>clear_pk_signing sign</code></p><p>Clears the memory used to back this signing object</p></dd></dl><dl><dt class="spec value" id="val-pk_signing_key_from_seed"><a href="#val-pk_signing_key_from_seed" class="anchor"></a><code><span class="keyword">val</span> pk_signing_key_from_seed : <sp