anchor.diff:        description = ''
           The group IDs used in NixOS.
         '';
  +      type = types.attrsOf types.int;
       };
   
     };
  
positive.code: 
  { lib, ... }:
  
  {
    options = {
  
  
negative.code:       description = ''
          The user IDs used in NixOS.
        '';
        type = types.attrsOf types.int;
      };
  
      ids.gids = lib.mkOption {
  