Initial

tests/_support/Language/en/Foo.php

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+<?php
+
+/**
+ * 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.
+ */
+
+return [
+    'bar'             => 'Foo Bar Translated',
+    'bar.min_length1' => 'The {field} field is very short.',
+    'bar.min_length2' => 'Supplied value ({value}) for {field} must have at least {param} characters.',
+    'baz'             => [
+        'min_length3.short' => 'The {field} field is very short.',
+    ],
+];