def __kill_vms(self, agent, parameters):
    agent.terminate_instances(parameters)
All phones found in the ``contact`` field.
dataset/ETHPy150Open AppScale/appscale/InfrastructureManager/infrastructure_manager.py/InfrastructureManager.__kill_vms--crossover with--dataset/ETHPy150Open letsencrypt/letsencrypt/acme/acme/messages.py/Registration.phones