first commit

system/Language/en/Cache.php

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+<?php
+
+declare(strict_types=1);
+
+/**
+ * This file is part of CodeIgniter 4 framework.
+ *
+ * (c) CodeIgniter Foundation <admin@codeigniter.com>
+ *
+ * For the full copyright and license information, please view
+ * the LICENSE file that was distributed with this source code.
+ */
+
+// Cache language settings
+return [
+    'unableToWrite'   => 'Cache unable to write to "{0}".',
+    'invalidHandlers' => 'Cache config must have an array of $validHandlers.',
+    'noBackup'        => 'Cache config must have a handler and backupHandler set.',
+    'handlerNotFound' => 'Cache config has an invalid handler or backup handler specified.',
+];