code: def get_mingw_bin() -> str:
      return os.path.join("c:/rtools40/mingw64/", "bin")
  
file_path: xgboost/tests/ci_build/test_r_package.py
imports: import argparse
  import os
  import shutil
  import subprocess
  from io import StringIO
  from pathlib import Path
  from platform import system
  from test_utils import R_PACKAGE, ROOT, DirectoryExcursion, cd, print_time, record_time
label_desc: Use image node_id 1 for calling a global function with example usage: get_mingw_bin() and returns: os