code: def test_markdown_files():
      links_ok = run_markdown_link_checker()
      if not links_ok:
          print("##WARNING : Broken links in docs.")
      return links_ok
  
file_path: serve/ts_scripts/sanity_utils.py
imports: import glob
  import json
  import os
  import subprocess
  import sys
  from pathlib import Path
  import torch
  from ts_scripts import marsgen
  from ts_scripts import tsutils
  from ts_scripts import utils
  from ts_scripts.tsutils import generate_grpc_client_stubs
label_desc: Use image node_id 9 for calling a global function with example usage: test_markdown_files() and returns: links_ok