 class="keyword">val</span> pickle_pk_decryption_length : <span><a href="../Types/PkDecryption/index.html#type-t">Types.PkDecryption.t</a> Ctypes_static.ptr</span> <span>&#45;&gt;</span> Unsigned.size_t</code></dt><dd><p><code>pickle_pk_decryption_length decryption</code></p><p>Returns the number of bytes needed to store a decryption object.</p></dd></dl><dl><dt class="spec value" id="val-pickle_pk_decryption"><a href="#val-pickle_pk_decryption" class="anchor"></a><code><span class="keyword">val</span> pick