Rewrites and Formatting

exam/classes/Request/Request.php

@@ -14,6 +14,6 @@ class Request
 
   public static function header(string $name, $defaultValue = null, bool $tryParse = true): ?string
   {
-    return request()->getHeader($name, $defaultValue, $tryParse);
+    return Request::request()->getHeader($name, $defaultValue, $tryParse);
   }
 }