Warning: Unsupported declare 'strict_types' in /var/www/devel/md/product-db/vendor/bacon/bacon-qr-code/src/Renderer/RendererInterface.php on line 2

Parse error: syntax error, unexpected ':', expecting ';' or '{' in /var/www/devel/md/product-db/vendor/bacon/bacon-qr-code/src/Renderer/RendererInterface.php on line 10