code: def process_group(self):
      return dist.distributed_c10d._get_default_group()
  
file_path: pytorch/test/distributed/_composable/fully_shard/test_fully_shard_util.py
imports: import sys
  import torch
  import torch.distributed
  from torch.distributed._composable import fully_shard
  from torch.distributed.fsdp._debug_utils import _get_sharded_module_tree_with_module_name_to_fqns
  from torch.distributed.fsdp.wrap import ModuleWrapPolicy
  from torch.testing._internal.common_dist_composable import CompositeModel, UnitModule
  from torch.testing._internal.common_distributed import skip_if_lt_x_gpu
  from torch.testing._internal.common_fsdp import FSDPTest
  from torch.testing._internal.common_utils import run_tests, TEST_WITH_DEV_DBG_ASAN
label_desc: Use image node_id 2 for calling the TestUtils obj's underlying member method code with example usage: obj.process_group() and returns: dist