Fix typo in class name

src/enums/MDTimingInterval.php

@@ -9,7 +9,7 @@
 /**
  * Represents timing intervals for autogenerated exports etc.
  */
-enum MDTimingInternal implements MDValueEnumInterface, JsonSerializable {
+enum MDTimingInterval implements MDValueEnumInterface, JsonSerializable {
 
     case weekly;
     case monthly;
@@ -20,9 +20,9 @@ enum MDTimingInternal implements MDValueEnumInterface, JsonSerializable {
      *
      * @param string $input Input to get a value from.
      *
-     * @return MDTimingInternal
+     * @return MDTimingInterval
      */
-    public static function fromString(string $input):MDTimingInternal {
+    public static function fromString(string $input):MDTimingInterval {
 
         return match($input) {
             'weekly' => self::weekly,