diff --git a/Models/KanbanBoardMapper.php b/Models/KanbanBoardMapper.php
index 518f51b..bf41cdd 100755
--- a/Models/KanbanBoardMapper.php
+++ b/Models/KanbanBoardMapper.php
@@ -61,7 +61,7 @@ final class KanbanBoardMapper extends DataMapperAbstract
     /**
      * Belongs to.
      *
-     * @var array<string, array{mapper:string, self:string}>
+     * @var array<string, array{mapper:string, external:string}>
      * @since 1.0.0
      */
     protected static array $belongsTo = [
diff --git a/Models/KanbanCardCommentMapper.php b/Models/KanbanCardCommentMapper.php
index fb5c4f3..4e4c33f 100755
--- a/Models/KanbanCardCommentMapper.php
+++ b/Models/KanbanCardCommentMapper.php
@@ -60,7 +60,7 @@ final class KanbanCardCommentMapper extends DataMapperAbstract
     /**
      * Belongs to.
      *
-     * @var array<string, array{mapper:string, self:string}>
+     * @var array<string, array{mapper:string, external:string}>
      * @since 1.0.0
      */
     protected static array $belongsTo = [
diff --git a/Models/KanbanCardMapper.php b/Models/KanbanCardMapper.php
index 79bb3d4..fe82343 100755
--- a/Models/KanbanCardMapper.php
+++ b/Models/KanbanCardMapper.php
@@ -50,7 +50,7 @@ final class KanbanCardMapper extends DataMapperAbstract
     /**
      * Belongs to.
      *
-     * @var array<string, array{mapper:string, self:string}>
+     * @var array<string, array{mapper:string, external:string}>
      * @since 1.0.0
      */
     protected static array $belongsTo = [
diff --git a/Models/KanbanColumn.php b/Models/KanbanColumn.php
index bd043d1..2563454 100755
--- a/Models/KanbanColumn.php
+++ b/Models/KanbanColumn.php
@@ -40,11 +40,23 @@ class KanbanColumn implements \JsonSerializable
      */
     private string $name = '';
 
-    private $order = 0;
+    /**
+     * Column order
+     *
+     * @var int
+     * @since 1.0.0
+     */
+    private int $order = 0;
 
     private $board = 0;
 
-    private $cards = [];
+    /**
+     * Cards
+     *
+     * @var array
+     * @since 1.0.0
+     */
+    private array $cards = [];
 
     /**
      * Get id.