/**
  * Remove Proxy
  *
  * Remove a previously registered <b>IProxy</b> instance from the <b>Model</b> by name.
  *
  * @param string $proxyName Name of the <b>IProxy</b> to remove from the <b>Model</b>.
  * @return IProxy The <b>IProxy</b> that was removed from the <b>Model</b>.
  */
 public function removeProxy($proxyName)
 {
     return isset($this->model) ? $this->model->removeProxy($proxyName) : null;
 }