Added the support for generating docs from template doc

app/Services/Documents/Exceptions/UnresolvedTokensException.php

@@ -0,0 +1,20 @@
+<?php
+
+namespace App\Services\Documents\Exceptions;
+
+use RuntimeException;
+
+class UnresolvedTokensException extends RuntimeException
+{
+    /** @var array<int,string> */
+    public array $unresolved;
+
+    /**
+     * @param  array<int,string>  $unresolved
+     */
+    public function __construct(array $unresolved, string $message = 'Unresolved tokens remain in template.')
+    {
+        parent::__construct($message);
+        $this->unresolved = $unresolved;
+    }
+}