code: def make_checkpoint_dir(path_to_job):
      """
      Creates the checkpoint directory (if not present already).
      Args:
          path_to_job (string): the path to the folder of the current job.
      """
      checkpoint_dir = os.path.join(path_to_job, "checkpoints")
      # Create the checkpoint dir from the master process
      if du.is_master_proc() and not pathmgr.exists(checkpoint_dir):
          try:
              pathmgr.mkdirs(checkpoint_dir)
          except Exception:
              pass
      return checkpoint_dir
  
imports: import copy
  import math
  import numpy
  import os
  import pickle
  from collections import OrderedDict
  import torch
  import slowfast.utils.distributed
  import slowfast.utils.logging
  from slowfast.utils.c2_model_loading import get_name_convert_func
  from slowfast.utils.env import checkpoint_pathmgr
label_desc: Use image node_id 1 for calling a global function with example usage: make_checkpoint_dir(path_to_job) and returns: checkpoint_dir