/**
  * slice
  *
  * see @ResultIterator
  */
 public function slice($name)
 {
     $values = [];
     foreach (parent::slice($name) as $value) {
         $values[] = $this->convertField($name, $value);
     }
     return $values;
 }
 /**
  * slice
  *
  * see @ResultIterator
  *
  * @access public
  * @param  string   $name
  * @return array
  */
 public function slice($name)
 {
     return $this->convertSlice(parent::slice($name), $name);
 }