code: def main():
      game = Connect4Game()
  
      c = Coach(game, args)
  
      if args.load_model:
          logger.info(
              "Loading checkpoint {}...".format(args.load_folder_file)
          )
          c.loadModel()
          logger.info(
              "Loading 'trainExamples' from file {}...".format(
                  args.load_folder_file
              )
          )
          c.loadTrainExamples()
  
      c.learn()
  
imports: from Coach import Coach
  from connect4_game import Connect4Game
  from utils import *
  from parl.utils import logger
label_desc: Use image node_id 1 for calling a global function with example usage: main() without return types