public function get_all_products_in( $order ) {
		$order = wc_get_order( $order );
		if ( ! $order ) {
			return [];
		}
		$products = [];
		foreach ( $order->get_items() as $item ) {
			$products[] = $order->get_product_from_item( $item );
		}
		return $products;
	}