From d5a65e91bbf1fcab24120cead588cb6b95db2fae Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Ji=C5=99=C3=AD=20Nov=C3=BD?= <novy@grapesc.cz>
Date: Wed, 26 Jan 2022 09:41:43 +0100
Subject: [PATCH] php 8: add default values

---
 src/Bridges/Chart/Renderers/AbstractChartRenderer.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/Bridges/Chart/Renderers/AbstractChartRenderer.php b/src/Bridges/Chart/Renderers/AbstractChartRenderer.php
index c40c54a..2a583fa 100644
--- a/src/Bridges/Chart/Renderers/AbstractChartRenderer.php
+++ b/src/Bridges/Chart/Renderers/AbstractChartRenderer.php
@@ -63,7 +63,7 @@ protected function getSeriesBys(): array
 	/**
 	 * @param mixed[] $conditions
 	 */
-	public function addSerie(array $conditions = [], string $type, string $title, ?string $color = null, ?string $group = null): void
+	public function addSerie(array $conditions = [], string $type = '', string $title = '', ?string $color = null, ?string $group = null): void
 	{
 		// Generate unique serie ID
 		$sid = md5(serialize([$conditions, $type, $title, $color]));