!BRIEF [-i] <input> [-o] <output>
!PARAMETER -i
  !ALIAS -in
  !TYPE string
  !REQUIRED true
  !BRIEF input file name
  !KEYLESS 1
!END
!PARAMETER -o
  !ALIAS -out
  !TYPE string
  !REQUIRED true
  !BRIEF output file name
  !KEYLESS 2
!END
