anchor.diff:      };
       propagatedBuildInputs = [ RegexpCommon ];
       meta = {
  +      description = "Provide patterns for CIDR blocks";
         license = with lib.licenses; [ artistic1 gpl1Plus ];
       };
     };
  
positive.code:       sha256 = "0y7m25fksiavzg4xj4cm9zkz8rmnk4iqy7lm01m4nmyqlna3082p";
      };
      meta = {
        license = with lib.licenses; [ artistic1 gpl1Plus ];
      };
    };
  
negative.code:     propagatedBuildInputs = [ CarpAssert ];
      buildInputs = [ TestException ];
      meta = {
        description = "Convenience assertions for common situations";
        license = with lib.licenses; [ artistic2 ];
      };
    };
  