Перевод «in Stock» в woocommerce

add_filter('woocommerce_get_availability','wcs_custom_get_availability',1,2);
function wcs_custom_get_availability( $availability, $_product ) {
	if ($_product->is_in_stock()){
		$availability['availability'] = __('В наличии','woocommerce');
	}
	if (!$_product->is_in_stock()){
		$availability['availability'] = __('Продано','woocommerce');
	}
	return $availability;
}