text: # Copyright (c) Facebook, Inc. and its affiliates.
  #
  # This source code is licensed under the MIT license found in the
  # LICENSE file in the root directory of this source tree.
  
  import argparse
  import sys
  
  
  def _normalize_spaces(line):
      return " ".join(line.split())
  
  
  def main():
      parser = argparse.ArgumentParser()
      parser.add_argument("-i", "--input_file", required=True, type=str)
      parser.add_argument("-n", "--repeat_times", required=True, type=int)
      parser.add_argument("-o", "--output_file", required=False, type=str)
      args = parser.parse_args()
      stream = open(args.output_file, "w") if args.output_file else sys.stdout
  
      for line in open(args.input_file):
          for _ in range(args.repeat_times):
              stream.write(_normalize_spaces(line) + "\n")
  
  
  if __name__ == "__main__":
      main()
  