anchor.diff:      owner = "awslabs";
       repo = "aws-lambda-builders";
       rev = "refs/tags/v${version}";
  -    sha256 = "sha256-EkAtRqUHwmH0LG/bkXBbZ3TMgXDtcqLfUBySPbrgWmc=";
  +    hash = "sha256-EkAtRqUHwmH0LG/bkXBbZ3TMgXDtcqLfUBySPbrgWmc=";
     };
   
     propagatedBuildInputs = [
  
positive.code:   ];
  
    checkInputs = [
      pytest
      mock
      parameterized
    ];
  
    checkPhase = ''
      export PATH=$out/bin:$PATH
      pytest tests/functional -k 'not can_invoke_pip'
    '';
  
    meta = with lib; {
      homepage = "https://github.com/awslabs/aws-lambda-builders";
      description = "A tool to compile, build and package AWS Lambda functions";
      longDescription = ''
        Lambda Builders is a Python library to compile, build and package
        AWS Lambda functions for several runtimes & frameworks.
  
negative.code: { lib
  , buildPythonPackage
  , fetchFromGitHub
  , mock
  , parameterized
  , pyelftools
  , pytestCheckHook
  , pythonOlder
  , six
  }:
  
  buildPythonPackage rec {
  