add Behaviour

src/Potter/Template/Behaviour.php

@@ -0,0 +1,25 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Potter\Template;
+
+use \Potter\Container;
+
+trait Behaviour 
+{
+    private static function addTemplateBehaviour(Container $container): void
+    {
+        self::addTemplateEngine($container);
+    }
+    
+    private static function addTemplateEngine(Container $container): void
+    {
+        $container->addShared(Template::class);
+    }
+    
+    private static function getTemplateEngine(Container $container): Template
+    {
+        return $container->get(Template::class);
+    }
+}