code: def get_default_cache_dir():
      return os.environ.get(
          "KERAS_OCR_CACHE_DIR",
          os.path.expanduser(os.path.join("~", ".keras-ocr")),
      )
  
imports: import os
  import io
  import typing
  import hashlib
  import urllib.request
  import urllib.parse
  import cv2
  import imgaug
  import numpy
  import validators
  import typing_extensions
  import matplotlib.pyplot
  from shapely import geometry
  from scipy import spatial
label_desc: Use image node_id 15 for calling a global function with example usage: get_default_cache_dir() and returns: os