anchor.diff:    ];
   
     checkInputs = [
  +    astropy
  +    lz4
       pytest-astropy
  -    astropy
       pytestCheckHook
     ];
   
  
positive.code: { lib
  , astropy
  , buildPythonPackage
  , fetchPypi
  , importlib-resources
  , jmespath
  , jsonschema
  , numpy
  , packaging
  , pytest-astropy
  
negative.code:     export PY_IGNORE_IMPORTMISMATCH=1
    '';
  
    pythonImportsCheck = [
      "asdf"
    ];
  
    meta = with lib; {
      description = "Python tools to handle ASDF files";
      homepage = "https://github.com/asdf-format/asdf";
      license = licenses.bsd3;
      maintainers = with maintainers; [ costrouc ];
    };
  