/**
  * Filter the query by a related LeasingBookingLeads object
  *
  * @param   LeasingBookingLeads|PropelObjectCollection $leasingBookingLeads  the related object to use as filter
  * @param     string $comparison Operator to use for the column comparison, defaults to Criteria::EQUAL
  *
  * @return                 LeasingNationalityQuery The current query, for fluid interface
  * @throws PropelException - if the provided filter is invalid.
  */
 public function filterByLeasingBookingLeads($leasingBookingLeads, $comparison = null)
 {
     if ($leasingBookingLeads instanceof LeasingBookingLeads) {
         return $this->addUsingAlias(LeasingNationalityPeer::ID, $leasingBookingLeads->getNationalityId(), $comparison);
     } elseif ($leasingBookingLeads instanceof PropelObjectCollection) {
         return $this->useLeasingBookingLeadsQuery()->filterByPrimaryKeys($leasingBookingLeads->getPrimaryKeys())->endUse();
     } else {
         throw new PropelException('filterByLeasingBookingLeads() only accepts arguments of type LeasingBookingLeads or PropelCollection');
     }
 }