--- /dev/null
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Console\Output;
+
+/**
+ * ConsoleOutputInterface is the interface implemented by ConsoleOutput class.
+ * This adds information about stderr output stream.
+ *
+ * @author Dariusz Górecki <darek.krk@gmail.com>
+ */
+interface ConsoleOutputInterface extends OutputInterface
+{
+ /**
+ * Gets the OutputInterface for errors.
+ *
+ * @return OutputInterface
+ */
+ public function getErrorOutput();
+
+ /**
+ * Sets the OutputInterface used for errors.
+ *
+ * @param OutputInterface $error
+ */
+ public function setErrorOutput(OutputInterface $error);
+}