def bw_usage_get(context, uuid, start_period, mac):
    return IMPL.bw_usage_get(context, uuid, start_period, mac)
Return bw usage for instance and mac in a given audit period.
dataset/ETHPy150Open BU-NU-CLOUD-SP16/Trusted-Platform-Module-nova/nova/db/api.py/bw_usage_get