def GCSToS3(args: 'argparse.Namespace') -> None:
  """Transfer a file from GCS to an S3 bucket.

  Args:
    args (argparse.Namespace): Arguments from ArgumentParser.
  """
  aws_account = account.AWSAccount(args.zone)
  aws_account.s3.GCSToS3(args.project, args.gcs_path, args.s3_path)

  logger.info('File successfully transferred.')
Transfer a file from GCS to an S3 bucket.

Args:
args (argparse.Namespace): Arguments from ArgumentParser.
tools/aws_cli.py