updated core to 1.7.15

system/src/Grav/Framework/Interfaces/RenderInterface.php

@@ -0,0 +1,38 @@
+<?php
+
+declare(strict_types=1);
+
+/**
+ * @package    Grav\Framework\Interfaces
+ *
+ * @copyright  Copyright (c) 2015 - 2021 Trilby Media, LLC. All rights reserved.
+ * @license    MIT License; see LICENSE file for details.
+ */
+
+namespace Grav\Framework\Interfaces;
+
+use Grav\Framework\ContentBlock\ContentBlockInterface;
+use Grav\Framework\ContentBlock\HtmlBlock;
+
+/**
+ * Defines common interface to render any object.
+ *
+ * @used-by \Grav\Framework\Flex\FlexObject
+ * @since 1.6
+ */
+interface RenderInterface
+{
+    /**
+     * Renders the object.
+     *
+     * @example $block = $object->render('custom', ['variable' => 'value']);
+     * @example {% render object layout 'custom' with { variable: 'value' } %}
+     *
+     * @param string|null $layout  Layout to be used.
+     * @param array       $context Extra context given to the renderer.
+     *
+     * @return ContentBlockInterface|HtmlBlock Returns `HtmlBlock` containing the rendered output.
+     * @api
+     */
+    public function render(string $layout = null, array $context = []);
+}