code: def parse_args():
      parser = argparse.ArgumentParser(
          description="Visualize a Dataset Pipeline"
      )
      parser.add_argument("config", help="config file path")
      parser.add_argument(
          "-p",
          "--parameter",
          type=str,
          default="lr",
          choices=["lr", "momentum", "wd"],
          help="The parameter to visualize its change curve, choose from"
          '"lr", "wd" and "momentum". Defaults to "lr".',
      )
      parser.add_argument(
          "-d",
          "--dataset-size",
          type=int,
          help="The size of the dataset. If specify, `build_dataset` will "
          "be skipped and use this size as the dataset size.",
      )
      parser.add_argument(
          "-n",
          "--ngpus",
          type=int,
          default=1,
          help="The number of GPUs used in training.",
      )
      parser.add_argument(
          "-s",
          "--save-path",
          type=Path,
          help="The learning rate curve plot save path",
      )
      parser.add_argument(
          "--log-level",
          default="WARNING",
          help="The log level of the handler and logger. Defaults to "
          "WARNING.",
      )
      parser.add_argument("--title", type=str, help="title of figure")
      parser.add_argument(
          "--style", type=str, default="whitegrid", help="style of plt"
      )
      parser.add_argument(
          "--not-show", default=False, action="store_true"
      )
      parser.add_argument(
          "--window-size",
          default="12*7",
          help='Size of the window to display images, in format of "$W*$H".',
      )
      parser.add_argument(
          "--cfg-options",
          nargs="+",
          action=DictAction,
          help="override some settings in the used config, the key-value pair "
          "in xxx=yyy format will be merged into config file. If the value to "
          'be overwritten is a list, it should be like key="[a,b]" or key=a,b '
          'It also allows nested list/tuple values, e.g. key="[(a,b),(c,d)]" '
          "Note that the quotation marks are necessary and that no white space "
          "is allowed.",
      )
      args = parser.parse_args()
      if args.window_size != "":
          assert re.match(
              r"\d+\*\d+", args.window_size
          ), "'window-size' must be in format 'W*H'."
  
      return args
  
imports: import argparse
  import json
  import os.path
  import re
  from pathlib import Path
  from unittest.mock import MagicMock
  import matplotlib.pyplot
  import rich
  import torch.nn
  from mmengine.config import Config, DictAction
  from mmengine.hooks import Hook
  from mmengine.model import BaseModel
  from mmengine.registry import init_default_scope
  from mmengine.runner import Runner
  from mmengine.visualization import Visualizer
  from rich.progress import BarColumn, MofNCompleteColumn, Progress, TextColumn
  from mmocr.registry import DATASETS
label_desc: Use image node_id 1 for calling a global function with example usage: parse_args() and returns: args