code: def reset_tmp_dir():
      os.environ["TRITON_CACHE_DIR"] = tmpdir
      if os.path.exists(tmpdir):
          shutil.rmtree(tmpdir, ignore_errors=True)
  
file_path: triton/python/test/unit/runtime/test_subproc.py
imports: import multiprocessing
  import os
  import shutil
  import torch
  import triton
  import triton.language
  from triton.compiler import ASTSource
label_desc: Use image node_id 1 for calling a global function with example usage: reset_tmp_dir() without return types