e are no real prototype mechanisms.  Moreover, Lisp implementations usually employ optimizations geared toward more traditional CLOS techniques which can actually cause less than ideal performance in programs with fluid objects.  Thus, fluid objects should generally be considered an experimental feature and used with proper care.</p>

  <p class="api">[standard class]
    <code class='api'><span class="api-name"> fluid-object </span></code>
<span class='accessory'>(precedence list: <code class='other-name'>