first commit

libraries/src/Association/AssociationServiceInterface.php

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+<?php
+
+/**
+ * Joomla! Content Management System
+ *
+ * @copyright  (C) 2018 Open Source Matters, Inc. <https://www.joomla.org>
+ * @license    GNU General Public License version 2 or later; see LICENSE.txt
+ */
+
+namespace Joomla\CMS\Association;
+
+// phpcs:disable PSR1.Files.SideEffects
+\defined('_JEXEC') or die;
+// phpcs:enable PSR1.Files.SideEffects
+
+/**
+ * The association service.
+ *
+ * @since  4.0.0
+ */
+interface AssociationServiceInterface
+{
+    /**
+     * Returns the associations extension helper class.
+     *
+     * @return  AssociationExtensionInterface
+     *
+     * @since  4.0.0
+     */
+    public function getAssociationsExtension(): AssociationExtensionInterface;
+}