code: def modules_imported_by(mod):
      """Return the set of modules imported transitively by mod."""
      before = set(sys.modules)
      try:
          importlib.import_module(mod)
      except Exception:
          return None, set()
      imports = set(sys.modules) - before
      return flush_to_zero(), imports
  
file_path: catboost/contrib/python/hypothesis/py3/_hypothesis_ftz_detector.py
imports: import importlib
  import sys
label_desc: Use image node_id 5 for calling a global function with example usage: modules_imported_by(mod) and returns: flush_to_zero,  imports, None,  set