public function all($subscription, array $parameters = [])
    {
        $parameters = array_merge($parameters, compact('subscription'));

        return $this->_get('subscription_items', $parameters);
    }
public function all($subscription, array $parameters = [])
    {
        $parameters = array_merge($parameters, compact('subscription'));

        return $this->_get('subscription_items', $parameters);
    }
public function all ( $ subscription , array $ parameters = [ ] ) { $ parameters = array_merge ( $ parameters , compact ( 'subscription' ) ) ; return $ this -> _get ( 'subscription_items' , $ parameters ) ; }
Lists all subscription items.

@param  string  $subscription
@param  array  $parameters
@return array
Lists all subscription items .