code: def _is_valid_module(qname):
      try:
          __import__(qname)
          return True
      except ImportError:
          return False
  
imports: import functools
  import itertools
  import logging
  import os
  import re
  from dataclasses import dataclass, field
  from importlib import __import__
  from typing import Dict, List, Optional, Set, Union
  from weakref import WeakSet
  import torch._guards
  import torch.distributed
label_desc: Use image node_id 12 for calling a global function with example usage: _is_valid_module(qname) and returns: True, False