Good point!

Co-authored-by: Johann Werner <darkv@users.noreply.github.com>

Author: wessel-techtribe-nl

src/PasswordGenerator.php

@@ -175,7 +175,7 @@ public static function EN(): PasswordGenerator
  * @static
  * @return PasswordGenerator configured instance that uses cache only
  */
- public static function CACHED(?string $wordCacheFile): PasswordGenerator
+ public static function CACHED(string $wordCacheFile = null): PasswordGenerator
  {
  $a = [];
  if ( !empty($wordCacheFile) ) {