code: def mkdir(arg):
      arg = str(arg)
      os.makedirs(arg, exist_ok=True)
      return arg
  
imports: import argparse
  import glob
  import os
  import os.path
  import pprint
  import soundfile
  import torch
  import fairseq
  from torch import nn
  from torch.utils.data import DataLoader
label_desc: Use image node_id 2 for calling the ArgTypes obj's underlying member method code with example usage: obj.mkdir(arg) and returns: arg