protected function getOptions($label = false) // @codingStandardsIgnoreLine - required by parent class
    {
        $options = [];
        foreach ($this->_storeManager->getStores() as $store) {
            $options[] = [
                'value' => $store->getId(),
                'label' => $store->getName()
            ];
        }

        if ($label) {
            array_unshift($options, [
                'value' => '',
                'label' => $label
            ]);
        }

        return $options;
    }