text: import argparse
  import sys
  
  from base45 import b45decode, b45encode
  
  
  def main() -> None:
      """Main function"""
  
      parser = argparse.ArgumentParser(description="Base45 encoder/decoder")
      parser.add_argument(
          "--encode",
          action="store_true",
          help="Encode data",
      )
      parser.add_argument(
          "--decode",
          action="store_true",
          help="Decode data",
      )
      args = parser.parse_args()
  
      if args.encode:
          data = sys.stdin.buffer.read()
          sys.stdout.write(b45encode(data).decode())
      elif args.decode:
          data = sys.stdin.buffer.read()
          sys.stdout.buffer.write(b45decode(data.decode()))
      else:
          parser.print_help()
          sys.exit(1)
  
  
  if __name__ == "__main__":
      main()
  