puppet error

lumenvox.pp

define lumenvox::language_pack (
  $language = undef,
  $version  = latest,
) {

  package { "LumenVox-${language}SREModel":
    ensure   => $version,
    provider => 'yum',
  }
}

class lumenvox::sre {

  $language_packs = {
    'BensEnglish' => { 'language' => 'BritishEnglish',
                        'version' => latest, },
  }

  create_resources( lumenvox::language_pack, $language_packs )
}