code: def test_gemini_ckpIO(world_size):
      spawn(run_dist, world_size)
  
file_path: ColossalAI/tests/test_checkpoint_io/test_gemini_torch_compability.py
imports: import pytest
  import torch
  import torch.distributed
  from torch.optim import Adam
  from utils import shared_tempdir
  import colossalai
  from colossalai.booster import Booster
  from colossalai.booster.plugin import GeminiPlugin, TorchDDPPlugin
  from colossalai.nn.optimizer import HybridAdam
  from colossalai.testing import check_state_dict_equal, clear_cache_before_run, parameterize, rerun_if_address_is_in_use, spawn
  from tests.kit.model_zoo import model_zoo
label_desc: Use image node_id 4 for calling a global function with example usage: test_gemini_ckpIO(world_size) without return types