code>hyp</code> <a href="ref-glossary.html#gl:instances">unit&nbsp;instances</a> to another agent:
<pre class="pretop">
 &gt; (let ((<a href="ref-print-object-for-sending-var.html">*print-object-for-sending*</a> 't))
      (<a href="ref-with-saving-sending-block.html">with-saving/sending-block</a> (stream :package ':my-app)
        (let ((*save/send-references-only* nil))
          (<a href="ref-do-instances-of-class.html">do-instances-of-class</a> (instance 'hyp :plus-subclasses)
            (<a href="ref-