anchor.diff:  
     hspecExpectations = callPackage ../development/libraries/haskell/hspec-expectations {};
   
  -  hspecExpectationsLens = callPackage ../development/libraries/haskell/hspec-expectations-lens {
  -    lens = self.lens_4_0_4;
  -  };
  +  hspecExpectationsLens = callPackage ../development/libraries/haskell/hspec-expectations-lens {};
   
     hspecMeta = callPackage ../development/libraries/haskell/hspec-meta {};
   
  
positive.code: 
    json = callPackage ../development/libraries/haskell/json {};
  
    jsonAssertions = callPackage ../development/libraries/haskell/json-assertions {
      aeson = self.aeson_0_7_0_1;
      lens = self.lens_4_0_4;
    };
  
    jsonTypes = callPackage ../development/libraries/haskell/jsonTypes {};
  
  
negative.code:   dice = callPackage ../development/libraries/haskell/dice {};
  
    diagrams = callPackage ../development/libraries/haskell/diagrams/diagrams.nix {};
    diagramsCairo = callPackage ../development/libraries/haskell/diagrams/cairo.nix {
      lens = self.lens_3_10_2;
    };
    diagramsCore = callPackage ../development/libraries/haskell/diagrams/core.nix {
      lens = self.lens_3_10_2;
    };
    diagramsContrib = callPackage ../development/libraries/haskell/diagrams/contrib.nix {
      lens = self.lens_3_10_2;
    };
    diagramsLib = callPackage ../development/libraries/haskell/diagrams/lib.nix {
      lens = self.lens_3_10_2;
    };
    diagramsPostscript = callPackage ../development/libraries/haskell/diagrams/postscript.nix {
       lens = self.lens_3_10_2;
    };
    diagramsSvg = callPackage ../development/libraries/haskell/diagrams/svg.nix {
      lens = self.lens_3_10_2;
    };
  
    Diff = callPackage ../development/libraries/haskell/Diff {};
  
  