def bw_usage_update_at_top(self, ctxt, uuid, mac, start_period,
            bw_in, bw_out, last_ctr_in, last_ctr_out, last_refreshed=None):
        bw_update_info = {'uuid': uuid,
                          'mac': mac,
                          'start_period': start_period,
                          'bw_in': bw_in,
                          'bw_out': bw_out,
                          'last_ctr_in': last_ctr_in,
                          'last_ctr_out': last_ctr_out,
                          'last_refreshed': last_refreshed}
        self.client.cast(ctxt, 'bw_usage_update_at_top',
                         bw_update_info=bw_update_info)
Store an object in S3 using the name of the Key object as the
dataset/ETHPy150Open BU-NU-CLOUD-SP16/Trusted-Platform-Module-nova/nova/cells/rpcapi.py/CellsAPI.bw_usage_update_at_top--crossover with--dataset/ETHPy150Open yyuu/botornado/boto/gs/key.py/Key.set_contents_from_string