def open(self, window):
        raise NotImplementedError('abstract')
Queries Amazon EC2 to see if the specified Elastic IP address has been
dataset/ETHPy150Open ardekantur/pyglet/pyglet/input/base.py/Tablet.open--crossover with--dataset/ETHPy150Open AppScale/appscale-tools/lib/agents/ec2_agent.py/EC2Agent.does_address_exist