code: def get_parser():
      """
      Return a standard command-line parser.
      """
      parser = argparse.ArgumentParser(
          description="""Start a Classy Vision training job.
  
      This can be used for training on your local machine, using CPU or GPU, and
      for distributed training. This script also supports Tensorboard, Visdom and
      checkpointing."""
      )
  
      parser = add_generic_args(parser)
      return parser
  
imports: import argparse
  import os
  from classy_vision.generic.util import is_pos_int
label_desc: Use image node_id 3 for calling a global function with example usage: get_parser() and returns: parser