human
I wrote the below code

    def _decorator(func):
        @wraps(func)
        def _decorated(*args, **kwargs):
            (site, __) = Site.objects.get_or_create(domain=domain, name=domain)
            (site_configuration, created) = SiteConfiguration.objects.get_or_create(site=site, defaults={'enabled': True, 'values': configuration})
            if (not created):
                site_configuration.values = configuration
                site_configuration.save()
            with patch('openedx.core.djangoapps.site_configuration.helpers.get_current_site_configuration', return_value=site_configuration):
                with patch('openedx.core.djangoapps.theming.helpers.get_current_site', return_value=site):
                    with patch('django.contrib.sites.models.SiteManager.get_current', return_value=site):
                        return func(*args, **kwargs)
        return _decorated
    return _decorator

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

def with_site_configuration(domain='test.localhost', configuration=None):