diff --git a/src/Api/Forms/Form.php b/src/Api/Forms/Form.php
index <HASH>..<HASH> 100644
--- a/src/Api/Forms/Form.php
+++ b/src/Api/Forms/Form.php
@@ -4,8 +4,14 @@ namespace seregazhuk\PinterestBot\Api\Forms;
 
 abstract class Form
 {
+    /**
+     * @return array
+     */
     abstract protected function getData();
 
+    /**
+     * @return array
+     */
     public function toArray(){
         return array_filter($this->getData(), function($item){
             return !is_null($item);
upd: forms refactoring