code: def get_or_create_hosted_zone(client, zone_name):
      
      zone_id = get_hosted_zone_by_name(client, zone_name)
      if zone_id:
          return zone_id
  
      logger.debug("Zone %s does not exist, creating.", zone_name)
  
      reference = uuid.uuid4().hex
  
      response = client.create_hosted_zone(Name=zone_name,
                                           CallerReference=reference)
  
      return parse_zone_id(response["HostedZone"]["Id"])
docs: Get the Id of an existing zone, or create it.
  
      Args:
          client (:class:`botocore.client.Route53`): The connection used to
              interact with Route53's API.
          zone_name (string): The name of the DNS hosted zone to create.
  
      Returns:
          string: The Id of the Hosted Zone.