def does_address_exist(self, parameters):
    try:
      conn = self.open_connection(parameters)
      elastic_ip = parameters[self.PARAM_STATIC_IP]
      conn.get_all_addresses(elastic_ip)
      AppScaleLogger.log('Elastic IP {0} can be used for this AppScale ' \
        'deployment.'.format(elastic_ip))
      return True
    except boto.exception.EC2ResponseError:
      AppScaleLogger.log('Elastic IP {0} does not exist.'.format(elastic_ip))
      return False
Set a tab stop at the current cursor position.
dataset/ETHPy150Open AppScale/appscale-tools/lib/agents/ec2_agent.py/EC2Agent.does_address_exist--crossover with--dataset/ETHPy150Open kuri65536/python-for-android/python-modules/twisted/twisted/conch/insults/insults.py/ITerminalTransport.horizontalTabulationSet