Added Project structure, API, Frontend and Websockets

api/vendor/sebastian/cli-parser/src/exceptions/UnknownOptionException.php

@@ -0,0 +1,26 @@
+<?php declare(strict_types=1);
+/*
+ * This file is part of sebastian/cli-parser.
+ *
+ * (c) Sebastian Bergmann <[email protected]>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+namespace SebastianBergmann\CliParser;
+
+use function sprintf;
+use RuntimeException;
+
+final class UnknownOptionException extends RuntimeException implements Exception
+{
+    public function __construct(string $option)
+    {
+        parent::__construct(
+            sprintf(
+                'Unknown option "%s"',
+                $option,
+            ),
+        );
+    }
+}