code: def make_tmp_dir(suffix="", prefix="tmp", dir=None):  # pylint: disable=redefined-builtin
    
    if dir is None:
      return tempfile.mkdtemp(suffix, prefix, dir)
    else:
      while True:
        rand_term = random.randint(1, 9999)
        tmp_dir = os.path.join(dir, "%s%d%s" % (prefix, rand_term, suffix))
        if tf.gfile.Exists(tmp_dir):
          continue
        tf.gfile.MakeDirs(tmp_dir)
        break
      return tmp_dir
docs: Make a temporary directory.