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diff --git a/vendor/psy/psysh/src/Command/ClearCommand.php b/vendor/psy/psysh/src/Command/ClearCommand.php
new file mode 100644
index 000000000..1a5b845d6
--- /dev/null
+++ b/vendor/psy/psysh/src/Command/ClearCommand.php
@@ -0,0 +1,49 @@
+<?php
+
+/*
+ * This file is part of Psy Shell.
+ *
+ * (c) 2012-2018 Justin Hileman
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Psy\Command;
+
+use Symfony\Component\Console\Input\InputInterface;
+use Symfony\Component\Console\Output\OutputInterface;
+
+/**
+ * Clear the Psy Shell.
+ *
+ * Just what it says on the tin.
+ */
+class ClearCommand extends Command
+{
+    /**
+     * {@inheritdoc}
+     */
+    protected function configure()
+    {
+        $this
+            ->setName('clear')
+            ->setDefinition([])
+            ->setDescription('Clear the Psy Shell screen.')
+            ->setHelp(
+                <<<'HELP'
+Clear the Psy Shell screen.
+
+Pro Tip: If your PHP has readline support, you should be able to use ctrl+l too!
+HELP
+            );
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    protected function execute(InputInterface $input, OutputInterface $output)
+    {
+        $output->write(sprintf('%c[2J%c[0;0f', 27, 27));
+    }
+}