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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 main(argv=None):
 """Run a Tensorflow model on the Iris dataset."""

  args = parse_arguments(sys.argv if argv is None else argv)

  tf.logging.set_verbosity(tf.logging.INFO)
  learn_runner.run(
      experiment_fn=get_experiment_fn(args),
      output_dir=args.job_dir)