anchor.diff:  
   buildPythonPackage rec {
     pname = "jsonrpc-async";
  -  version = "2.1.0";
  +  version = "2.1.1";
     format = "setuptools";
   
     disabled = pythonOlder "3.7";
  
positive.code:   checkInputs = [
      pytest-aiohttp
      pytestCheckHook
    ];
  
    patches = [
      # Fix tests with later pytest-aiohttp, https://github.com/emlove/jsonrpc-async/pull/9
      (fetchpatch {
        name = "support-later-pytest-aiohttp.patch";
        url = "https://github.com/emlove/jsonrpc-async/commit/8b790f23af0d898df90460029d5ba3bcfb0423ed.patch";
        sha256 = "sha256-rthHRF90hywMIbvIHo3Do/uzXKe+STPOoZIa80H4b/g=";
      })
    ];
  
    pytestFlagsArray = [
  
negative.code: , aiohttp
  , buildPythonPackage
  , fetchFromGitHub
  , jsonrpc-base
  , pytest-aiohttp
  , pytestCheckHook
  