'Confirm only allowed settings are present.'

def _validate_allowed_settings(self, application_id, application_config, allowed_settings):

    for setting_key in application_config.keys():
        if (setting_key not in allowed_settings):
            raise ImproperlyConfigured('Platform    {},    app    {}    does    not    support    the    setting:    {}.'.format(application_config['PLATFORM'], application_id, setting_key))
