anchor.diff:    inherit (lib)
       concatStringsSep
       flip
  -    literalDocBook
  +    literalMD
       literalExpression
       optionalAttrs
       optionals
       recursiveUpdate
  +    mdDoc
       mkEnableOption
       mkIf
       mkOption
  
positive.code:       type = types.nullOr types.str;
        default = "3w";
        example = null;
        description = ''
          Set the interval how often full repairs are run, i.e.
          <literal>nodetool repair --full</literal> is executed. See
          https://cassandra.apache.org/doc/latest/operating/repair.html
          for more information.
  
          Set to <literal>null</literal> to disable full repairs.
        '';
      };
  
  
negative.code:       type = types.nullOr types.str;
        default = "3d";
        example = null;
        description = mdDoc ''
          Set the interval how often incremental repairs are run, i.e.
          {command}`nodetool repair` is executed. See
          <https://cassandra.apache.org/doc/latest/operating/repair.html>
          for more information.
  
          Set to `null` to disable incremental repairs.
        '';
      };
  
  