!PARAMETER -a
  !TYPE bool
  !DEFAULT false
!END

!PARAMETER -b
  !TYPE bool
  !DEFAULT false
!END

!PARAMETER -c
  !TYPE bool
  !DEFAULT false
!END

!PARAMETER -in
  !TYPE string
  !KEYLESS 1
!END

!PARAMETER -out
  !TYPE string
  !KEYLESS 2
!END