code: public function setPerson(\Chill\PersonBundle\Entity\Person $person = null)
      {
          $this->person = $person;
      
          return $this;
      }
docs: Set person.
  
  For consistency, you should use Person::addAccompanyingPeriod instead.
  
  @param \Chill\PersonBundle\Entity\Person $person
  @return AccompanyingPeriod
  @see Person::addAccompanyingPeriod