anchor.diff:        };
   
         networksStyle = mkOption {
  +        type = types.str;
           default = "";
           description = "
             Name of standard way of trusted network specification to use,
  
positive.code:       };
  
        networks = mkOption {
          default = null;
          example = ["192.168.0.1/24"];
          description = "
  
negative.code:       };
  
        virtual = mkOption {
          type = types.lines;
          default = "";
          description = "
            Entries for the virtual alias map, cf. man-page virtual(8).
  