code: def setup_module():
      check_shm_for_dali(
          "Expected clear shared mem environment before starting tests, "
          "found old DALI file handle: {}"
      )
  
file_path: DALI/dali/test/python/test_pool_utils.py
imports: import os
  import psutil
  import weakref
label_desc: Use image node_id 5 for calling a global function with example usage: setup_module() without return types