[Puppet Users] Array being flattened

demo.yaml

---
amanda::disklist:
  '/var':
    configs: demo
    dumptype: dumptype

gistfile1.pp

class amanda (
  $disklists = undef,
) {
  include amanda::params
  include amanda::virtual

  realize(
    File['/etc/dumpdates'],
    File["${amanda::params::homedir}/.ssh"],
    File["${amanda::params::homedir}/.ssh/config"],
    File["${amanda::params::homedir}/.ssh/authorized_keys"],
    File[$amanda::params::amanda_directories],
    File[$amanda::params::amanda_files],
    File[$amanda::params::homedir],
    User[$amanda::params::user],
  )
  
  if $disklists != undef {
    $disklists_type = type($disklists)
    if $disklists_type == 'hash' {
      create_resources('amanda::disklist',$disklists)
    } else {
      fail("disklists type is <${disklists_type}> and must be a hash")
    }
  }
}

test.yaml

---
amanda::disklist:
  '/etc':
    configs: test
    dumptype: gtar
  '/var':
    configs: test
    dumptype: dumptype