code: public function setAttributeOrders($attributeOrders, $validate = true)
      {
          if ($attributeOrders === null || !$validate) {
              $this->_attributeOrders = $attributeOrders;
          } else {
              $this->_attributeOrders = [];
              foreach ($attributeOrders as $attribute => $order) {
                  if (isset($this->attributes[$attribute])) {
                      $this->_attributeOrders[$attribute] = $order;
                      if (!$this->enableMultiSort) {
                          break;
                      }
                  }
              }
          }
      }
docs: Sets up the currently sort information.
  @param array|null $attributeOrders sort directions indexed by attribute names.
  Sort direction can be either `SORT_ASC` for ascending order or
  `SORT_DESC` for descending order.
  @param bool $validate whether to validate given attribute orders against [[attributes]] and [[enableMultiSort]].
  If validation is enabled incorrect entries will be removed.
  @since 2.0.10