refactor: documents

Signed-off-by: Sebastian Krupinski <krupinski01@gmail.com>

shared/lib/Mail/Object/MessagePropertiesBaseAbstract.php

@@ -23,13 +23,6 @@ abstract class MessagePropertiesBaseAbstract extends NodePropertiesBaseAbstract
 
     public const JSON_TYPE = MessagePropertiesBaseInterface::JSON_TYPE;
 
-    /**
-     * @inheritDoc
-     */
-    public function version(): int {
-        return $this->data['version'] ?? 1;
-    }
-
     /**
      * @inheritDoc
      */
@@ -337,7 +330,7 @@ abstract class MessagePropertiesBaseAbstract extends NodePropertiesBaseAbstract
     public function jsonSerialize(): array {
         $data = [
             self::JSON_PROPERTY_TYPE => self::JSON_TYPE,
-            self::JSON_PROPERTY_VERSION => $this->data['version'] ?? 1,
+            self::JSON_PROPERTY_SCHEMA => $this->data['schema'] ?? 1,
         ];
         
         if (!empty($this->data['headers'])) {