code: def main():
      print("Test basic notebook can be ran")
      test_can_initialize()
      if is_bnb_available():
          print("Test problematic imports (bnb)")
          test_problematic_imports()
  
file_path: accelerate/src/accelerate/test_utils/scripts/test_notebook.py
imports: import os
  from pytest import raises
  from accelerate import PartialState, notebook_launcher
  from accelerate.test_utils import require_bnb
  from accelerate.utils import is_bnb_available
label_desc: Use image node_id 4 for calling a global function with example usage: main() without return types