PDepend\Util\Cache\CacheDriver::type PHP Method

    public function type($type);

 /**
  * The magic sleep method is called by the PHP runtime environment before an
  * instance of this class gets serialized. It returns an array with the
  * names of all those properties that should be cached for this class or
  * interface instance.
  *
  * @return array
  */
 public function __sleep()
 {
     if (is_array($this->methods)) {
         $this->cache->type('methods')->store($this->id, $this->methods);
         $this->methods = null;
     }
     return array('cache', 'context', 'docComment', 'endLine', 'modifiers', 'name', 'nodes', 'namespaceName', 'startLine', 'userDefined', 'id');
 }