/**
  * {@inheritdoc}
  */
 public function buildConditions()
 {
     parent::buildConditions();
     if ($this->getOption('number') !== null) {
         $this->getBill()->setNumber($this->getOption('number'));
     }
     $this->getBill()->setFee($this->fee);
     $this->getBill()->setFeesFollower($this->follower);
 }