First draft

src/OAI/Exception/InvalidTokenException.php

@@ -0,0 +1,14 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App\OAI\Exception;
+
+final class InvalidTokenException extends \Exception
+{
+    public function __construct()
+    {
+        $this->message = "The value of the resumptionToken argument is invalid or expired.";
+        $this->code = 'badResumptionToken';
+    }
+}