--- /dev/null
+<?php
+
+/*
+ * This file is part of Psy Shell.
+ *
+ * (c) 2012-2017 Justin Hileman
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Psy\Formatter;
+
+/**
+ * Formatter interface.
+ */
+interface Formatter
+{
+ /**
+ * @param \Reflector $reflector
+ *
+ * @return string
+ */
+ public static function format(\Reflector $reflector);
+}