#!/usr/bin/env python

# Copyright 2019 Google LLC.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.

"""
  Prints "true" if the input |file_name| exists.
"""

import argparse
import os

parser = argparse.ArgumentParser()
parser.add_argument("-file_name", type=str,
        help="File name for which to check existence for.")
args = parser.parse_args()
if os.path.exists(args.file_name):
  print "true"