diff --git a/README.md b/README.md
index e18f544..f29abf6 100644
--- a/README.md
+++ b/README.md
@@ -83,6 +83,29 @@ class m150722_150100_multiple_tree extends Migration
 ```php
 use paulzi\nestedsets\NestedSetsBehavior;
 
+/**
+ * @property integer $id
+ * @property integer $lft
+ * @property integer $rgt
+ * @property integer $depth
+ *
+ * @method getParents($depth = null)
+ * @method getParent()
+ * @method getRoot()
+ * @method getDescendants($depth = null, $andSelf = false, $backOrder = false)
+ * @method getChildren()
+ * @method getLeaves($depth = null)
+ * @method getPrev()
+ * @method getNext()
+ * @method populateTree($depth = null)
+ * @method isRoot()
+ * @method isLeaf()
+ * @method makeRoot()
+ * @method prependTo($node)
+ * @method appendTo($node)
+ * @method deleteWithChildren()
+ */
+
 class Sample extends \yii\db\ActiveRecord
 {
     public function behaviors() {
@@ -291,4 +314,4 @@ To delete a node with descendants:
 $node11 = Sample::findOne(['name' => 'node 1.1']);
 $node11->delete(); // delete node, children come up to the parent
 $node11->deleteWithChildren(); // delete node and all descendants 
-```
\ No newline at end of file
+```