[ClassVersion("1.0.0"), FriendlyName("Group")] 
class MSFT_GroupResource : OMI_BaseResource
{
  [Key] string GroupName;
  [write,ValueMap{"Present", "Absent"},Values{"Present", "Absent"}] string Ensure;
  [write] string Description;
  [write] string Members[];
  [write] string MembersToInclude[];
  [write] string MembersToExclude[];
  [write,EmbeddedInstance("MSFT_Credential")] string Credential;
};