Merge pull request #17448 from mattwire/api4membershiptype

Add MembershipType to Api4

Civi/Api4/MembershipType.php

+<?php
+
+/*
+ +--------------------------------------------------------------------+
+ | Copyright CiviCRM LLC. All rights reserved.                        |
+ |                                                                    |
+ | This work is published under the GNU AGPLv3 license with some      |
+ | permitted exceptions and without any warranty. For full license    |
+ | and copyright information, see https://civicrm.org/licensing       |
+ +--------------------------------------------------------------------+
+ */
+
+namespace Civi\Api4;
+
+/**
+ * MembershipType entity.
+ *
+ * @package Civi\Api4
+ */
+class MembershipType extends Generic\DAOEntity {
+
+}