human
I wrote the below code

    if (override is None):
        override = '192.168.*;127.0.0.1;localhost.localdomain;172.16.1.1'
    if compat.is_py3:
        import winreg
    else:
        import _winreg as winreg
    class RegHandle:
        def Close(self):
            pass
    ie_settings = RegHandle()
    def OpenKey(key, subkey):
        return ie_settings
    def QueryValueEx(key, value_name):
        if (key is ie_settings):
            if (value_name == 'ProxyEnable'):
                return [1]
            elif (value_name == 'ProxyOverride'):
                return [override]
    monkeypatch.setenv('http_proxy', '')
    monkeypatch.setenv('https_proxy', '')
    monkeypatch.setenv('ftp_proxy', '')
    monkeypatch.setenv('no_proxy', '')
    monkeypatch.setenv('NO_PROXY', '')
    monkeypatch.setattr(winreg, 'OpenKey', OpenKey)
    monkeypatch.setattr(winreg, 'QueryValueEx', QueryValueEx)

What's a good function header?
assistant
#Here's a good function header.

@pytest.mark.skipif((os.name != 'nt'), reason='Test    only    on    Windows')
@pytest.mark.parametrize('url,    expected,    override', (('http://192.168.0.1:5000/', True, None), ('http://192.168.0.1/', True, None), ('http://172.16.1.1/', True, None), ('http://172.16.1.1:5000/', True, None), ('http://localhost.localdomain:5000/v1.0/', True, None), ('http://172.16.1.22/', False, None), ('http://172.16.1.22:5000/', False, None), ('http://google.com:5000/v1.0/', False, None), ('http://mylocalhostname:5000/v1.0/', True, '<local>'), ('http://192.168.0.1/', False, '')))
def test_should_bypass_proxies_win_registry(url, expected, override, monkeypatch):