···

       
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    haskellPackages = mkOption {

     

       
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      description = "Which haskell package set to use.";

     

       
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      default = pkgs.haskellPackages;

     

       
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-
       
      type = types.package;

     

       
45
       
44
       
 
       
      defaultText = "pkgs.haskellPackages";

     

       
46
       
45
       
 
       
    };

     

       
47
       
46