code: def get_zone():
      
      response = urlopen('{}/getNewZone'.format(ACRA_CONNECTOR_API_ADDRESS))
      json_data = response.read().decode('utf-8')
      zone_data = json.loads(json_data)
      return zone_data['id'], b64decode(zone_data['public_key'])
docs: make http response to AcraServer api to generate new zone and return tuple
      of zone id and public key