/**
*
* @return $this
*
*/
public function add_arg($name, $value = null)
{
$this->_args->set_param($name, $value);
return $this;
}
/**
*
* @return $this
*
*/
public function add_arg($name, $value = null)
{
$this->_args->set_param($name, $value);
return $this;
}