anchor.diff:        '';
         restartTriggers = [
           pkgs.python27Packages.graphite_web
  -        pkgs.python27Packages.waitress
         ];
       };
   
  
positive.code:         Group = "graphite";
        };
        restartTriggers = [
          pkgs.pythonPackages.carbon cfg.carbon.config cfg.carbon.aggregationRules
        ];
      };
  
  
negative.code:         Group = "graphite";
        };
        restartTriggers = [
          pkgs.pythonPackages.carbon
          configDir
        ];
      };
  
  