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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def _cl_aws_cli(cls, file_info, region):
 """Command line required for download using the standard AWS command line interface. """

        s3file = cls._S3_FILE % {"bucket": file_info.bucket,
                                 "key": file_info.key,
                                 "region": ""}
        command = [os.path.join(os.path.dirname(sys.executable), "aws"),
                   "s3", "cp", "--region", region, s3file]
        return (command, "awscli")