anchor.diff:    version = "0.5.0";
     format = "pyproject";
   
  +  disabled = pythonOlder "3.6";
  +
     src = fetchFromGitHub {
       owner = "Paperspace";
       repo = pname;
  
positive.code: , poetry-core
  , prometheus-client
  , pytestCheckHook
  , requests
  }:
  
  
negative.code:     pytestCheckHook
    ];
  
    postPatch = ''
      substituteInPlace pyproject.toml \
        --replace 'wheel = "^0.35.1"' 'wheel = "*"' \
        --replace 'prometheus-client = ">=0.8,<0.10"' 'prometheus-client = "*"'
    '';
  
    preCheck = ''
      export HOSTNAME=myhost-experimentId
    '';
  
    disabledTestPaths = [
      # Requires a working Prometheus push gateway
      "tests/integration/test_metrics.py"
    ];
  
    pythonImportsCheck = [
      "gradient_utils"
    ];
  
    meta = with lib; {
      description = "Python utils and helpers library for Gradient";
  