code: def get_css(m):
      url = m.group("url")
      path = os.path.dirname(FLAGS.path) + url[url.rindex("/") :]
      return m.group("css").replace(url, path)
  
file_path: tensorboard/tensorboard/tools/import_google_fonts.py
imports: import hashlib
  import httplib
  import os
  import re
  import sys
  import urlparse
  from absl import app
  from absl import flags
label_desc: Use image node_id 4 for calling a global function with example usage: get_css(m) and returns: m