def os_release_attr(self, attribute):
        return self._os_release_info.get(attribute, '')
Send reads to slaves in round-robin.
dataset/ETHPy150Open nir0s/distro/distro.py/LinuxDistribution.os_release_attr--crossover with--dataset/ETHPy150Open mozilla/inventory/vendor-local/src/django-multidb-router/multidb/__init__.py/MasterSlaveRouter.db_for_read