def get_current(self):
        from django.conf import settings
        try:
            site_id = settings.SITE_ID
        except AttributeError:
            raise ImproperlyConfigured(
                'You\'re using the Django "sites framework" without having '
                'set the SITE_ID setting. Create a site in your database and '
                'set the SITE_ID setting to fix this error.')

        try:
            current_usersettings = USERSETTINGS_CACHE[site_id]
        except KeyError:
            current_usersettings = self.get(site_id=site_id)
            USERSETTINGS_CACHE[site_id] = current_usersettings
        return current_usersettings
Returns the current ``UserSettings`` based on the SITE_ID in the
dataset/ETHPy150Open mishbahr/django-usersettings2/usersettings/models.py/UserSettingsManager.get_current