findById() публичный Метод

public findById ( $id )
 /** {@inheritdoc} */
 public function get(UuidInterface $reservationId)
 {
     if (null === ($reservation = $this->file->findById($reservationId))) {
         throw new ReservationDoesNotExist(sprintf('Reservation with id %s does not exist.', $reservationId));
     }
     return $reservation;
 }
 public function get($email)
 {
     return $this->file->findById($email);
 }