le. <code>retrieve_object</code> decrypts a raw or a text connection or a
  file (encrypted by <code>save_object</code>). Note that <code>retrieve_object</code>
  returns the object.</p>
    
    </div>

    <pre class="usage"><span class='fu'>retrieve_object</span>(<span class='no'>conn</span>, <span class='kw'>key</span> <span class='kw'>=</span> <span class='st'>"pass"</span>, <span class='kw'>pkey</span> <span class='kw'>=</span> <span class='kw'>NULL</span>, <span class='kw'>ascii</span> <span class='k