Add vendor and .env to make usable

vendor/phpunit/phpunit-mock-objects/src/Builder/Identity.php

@@ -0,0 +1,30 @@
+<?php
+/*
+ * This file is part of the phpunit-mock-objects package.
+ *
+ * (c) Sebastian Bergmann <sebastian@phpunit.de>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+namespace PHPUnit\Framework\MockObject\Builder;
+
+/**
+ * Builder interface for unique identifiers.
+ *
+ * Defines the interface for recording unique identifiers. The identifiers
+ * can be used to define the invocation order of expectations. The expectation
+ * is recorded using id() and then defined in order using
+ * PHPUnit\Framework\MockObject\Builder\Match::after().
+ */
+interface Identity
+{
+    /**
+     * Sets the identification of the expectation to $id.
+     *
+     * @note The identifier is unique per mock object.
+     *
+     * @param string $id Unique identification of expectation.
+     */
+    public function id($id);
+}