code: def main():
      parser = _get_parser()
  
      opt, unknown = parser.parse_known_args()
      train(opt)
  
file_path: OpenNMT-py/onmt/bin/train.py
imports: import torch
  from functools import partial
  from onmt.utils.distributed import ErrorHandler, spawned_train
  from onmt.utils.misc import set_random_seed
  from onmt.utils.logging import init_logger, logger
  from onmt.utils.parse import ArgumentParser
  from onmt.opts import train_opts
  from onmt.train_single import main
label_desc: Use image node_id 3 for calling a global function with example usage: main() without return types