Drupal 8.0.0 beta 12. More info: https://www.drupal.org/node/2514176

core/lib/Drupal/Component/Utility/ArgumentsResolverInterface.php

@@ -0,0 +1,26 @@
+<?php
+
+/**
+ * @file
+ * Contains \Drupal\Component\Utility\ArgumentsResolverInterface.
+ */
+
+namespace Drupal\Component\Utility;
+
+/**
+ * Resolves the arguments to pass to a callable.
+ */
+interface ArgumentsResolverInterface {
+
+  /**
+   * Gets arguments suitable for passing to the given callable.
+   *
+   * @return array
+   *   An array of arguments to pass to the callable.
+   *
+   * @throws \RuntimeException
+   *   When a value for an argument given cannot be resolved.
+   */
+  public function getArguments(callable $callable);
+
+}