group.yaml

---
cuda::install::cuda_pkgs:
  'cuda-6.0':
    ensure: 'absent'
  'cuda-7.5':
    ensure: 'present'

install.pp

class cuda::install (
  $cuda_pkgs,
  ){
    if empty($cuda_pkgs) {
      fail('please define list of cuda pkgs')
    }
    include cuda::repo
    ensure_packages($cuda_pkgs)
}