def append(self, payload):
        self.buff += payload
Preparation live migration.
dataset/ETHPy150Open ARMmbed/htrun/mbed_host_tests/host_tests_conn_proxy/conn_proxy.py/KiViBufferWalker.append--crossover with--dataset/ETHPy150Open BU-NU-CLOUD-SP16/Trusted-Platform-Module-nova/nova/virt/xenapi/driver.py/XenAPIDriver.pre_live_migration