Update to drupal 8.0.0-rc1. For more information, see https://www.drupal.org/node/2582663

vendor/zendframework/zend-stdlib/src/ParametersInterface.php

@@ -0,0 +1,86 @@
+<?php
+/**
+ * Zend Framework (http://framework.zend.com/)
+ *
+ * @link      http://github.com/zendframework/zf2 for the canonical source repository
+ * @copyright Copyright (c) 2005-2015 Zend Technologies USA Inc. (http://www.zend.com)
+ * @license   http://framework.zend.com/license/new-bsd New BSD License
+ */
+
+namespace Zend\Stdlib;
+
+use ArrayAccess;
+use Countable;
+use Serializable;
+use Traversable;
+
+/*
+ * Basically, an ArrayObject. You could simply define something like:
+ *     class QueryParams extends ArrayObject implements Parameters {}
+ * and have 90% of the functionality
+ */
+interface ParametersInterface extends ArrayAccess, Countable, Serializable, Traversable
+{
+    /**
+     * Constructor
+     *
+     * @param array $values
+     */
+    public function __construct(array $values = null);
+
+    /**
+     * From array
+     *
+     * Allow deserialization from standard array
+     *
+     * @param array $values
+     * @return mixed
+     */
+    public function fromArray(array $values);
+
+    /**
+     * From string
+     *
+     * Allow deserialization from raw body; e.g., for PUT requests
+     *
+     * @param $string
+     * @return mixed
+     */
+    public function fromString($string);
+
+    /**
+     * To array
+     *
+     * Allow serialization back to standard array
+     *
+     * @return mixed
+     */
+    public function toArray();
+
+    /**
+     * To string
+     *
+     * Allow serialization to query format; e.g., for PUT or POST requests
+     *
+     * @return mixed
+     */
+    public function toString();
+
+    /**
+     * Get
+     *
+     * @param string $name
+     * @param mixed|null $default
+     * @return mixed
+     */
+    public function get($name, $default = null);
+
+    /**
+     * Set
+     *
+     * @param string $name
+     * @param mixed $value
+     * @return ParametersInterface
+     */
+    public function set($name, $value);
+}