code: def check_dir_name(dir_path):
      if isinstance(dir_path, str):
          if len(dir_path) > 0:
              if dir_path[-1] != "/":
                  dir_path += "/"
          return dir_path
      else:
          raise ValueError(
              "Incorrect string format for directory path."
          )
  
imports: from __future__ import division, print_function, absolute_import
  import six
  import string
  import random
  import numpy
  import tensorflow.compat.v1
  from tensorflow.python import pywrap_tensorflow
  import tflearn.variables
label_desc: Use image node_id 24 for calling a global function with example usage: check_dir_name(dir_path) and returns: dir_path