code: def str2bool(v):
      if v.lower() in ("yes", "true", "t", "y", "1"):
          return True
      elif v.lower() in ("no", "false", "f", "n", "0"):
          return False
      else:
          raise argparse.ArgumentTypeError("Boolean value expected.")
  
imports: from __future__ import absolute_import
  from __future__ import division
  from __future__ import print_function
  import argparse
  import os
  import os.path
  import timeit
  import torch
  import torch.nn
  import torch.backends.cudnn
  import torch.distributed
  import torch.optim
  import torchvision.transforms
  import torchvision.utils
  import utils.schp
  from datetime import datetime
  from tensorboardX import SummaryWriter
  from torch.utils.data.distributed import DistributedSampler
  from inplace_abn import InPlaceABNSync
  from inplace_abn import InPlaceABN
  from dataset import datasets
  from networks import dml_csr
  from utils.logging import get_root_logger
  from utils.utils import decode_parsing, inv_preprocess, SingleGPU
  from utils.encoding import DataParallelModel, DataParallelCriterion
  from utils.miou import compute_mean_ioU
  from utils.warmup_scheduler import SGDRScheduler
  from loss.criterion import Criterion
  from test import valid
label_desc: Use image node_id 1 for calling a global function with example usage: str2bool(v) and returns: True, False