public function addChildren(Category $children)
 {
     $this->childrens[] = $children;
     $children->setParent($this);
     return $this;
 }
 /**
  * {@inheritDoc}
  */
 public function getProducts()
 {
     $this->__initializer__ && $this->__initializer__->__invoke($this, 'getProducts', []);
     return parent::getProducts();
 }