code: def main(argv):
      del argv
      logging.info("Starting RL training.")
  
      gin_configs = FLAGS.config if FLAGS.config is not None else []
      gin.enter_interactive_mode()
      gin.parse_config_files_and_bindings(
          FLAGS.config_file, gin_configs
      )
      gin.exit_interactive_mode()
  
      logging.info("Gin config:")
      logging.info(gin_configs)
  
      train_rl(output_dir=FLAGS.output_dir)
  
      # TODO(afrozm): This is for debugging.
      logging.info("Dumping stack traces of all stacks.")
      faulthandler.dump_traceback(all_threads=True)
  
      logging.info("Training is done, should exit.")
  
file_path: trax/trax/rl_trainer.py
imports: import faulthandler
  from absl import app
  from absl import flags
  from absl import logging
  import gin
  import jax
  from jax import config
  from trax import fastmath
  from trax import rl
  from trax import trainer_flags
  from trax.rl import task
  from trax.rl import training
  from trax.tf_numpy import numpy
label_desc: Use image node_id 2 for calling a global function with example usage: main(argv) without return types