code: def _test_named_parameters_and_buffers(
      self, prefix: str, recurse: bool
  ):
      model = NestedWrappedModule.init(
          self.process_group,
          FSDPInitMode.NO_FSDP,
          CUDAInitMode.CUDA_BEFORE,
          deterministic=True,
      )
      model.register_buffer("buffer", torch.ones(1))
      # Wrap the top-level with FSDP since `named_parameters()` and
      # `named_buffers` will contain FSDP prefixes if called on a non-FSDP
      # root module
      fsdp_model = FSDP(
          NestedWrappedModule.init(
              self.process_group,
              FSDPInitMode.NO_FSDP,
              CUDAInitMode.CUDA_BEFORE,
              deterministic=True,
          ),
          self.process_group,
      )
      fsdp_model.register_buffer("buffer", torch.ones(1))
      with FSDP.summon_full_params(fsdp_model):
          for call in ["named_parameters", "named_buffers"]:
              for (n1, p1), (n2, p2) in itertools.zip_longest(
                  getattr(fsdp_model, call)(
                      prefix=prefix, recurse=recurse
                  ),
                  getattr(model, call)(prefix=prefix, recurse=recurse),
              ):
                  self.assertEqual(n1, n2)
                  self.assertEqual(p1, p2)
  
imports: import contextlib
  import itertools
  import math
  import sys
  from typing import Any, Dict, List, Optional, Union
  import torch
  import torch.distributed.fsdp._traversal_utils
  import torch.nn
  from torch import distributed
  from torch.distributed.fsdp import CPUOffload, FullyShardedDataParallel, MixedPrecision, ShardingStrategy
  from torch.distributed.fsdp._common_utils import clean_tensor_name
  from torch.distributed.fsdp._flat_param import FlatParameter
  from torch.nn.parallel.distributed import DistributedDataParallel
  from torch.testing._internal.common_distributed import skip_if_lt_x_gpu
  from torch.testing._internal.common_fsdp import CUDAInitMode, FSDPInitMode, FSDPTest, NestedWrappedModule, TransformerWithSharedParams
  from torch.testing._internal.common_utils import run_tests, TEST_WITH_DEV_DBG_ASAN
label_desc: Use image node_id 10 for calling the TestUnshardParams obj's underlying member method code with example usage: obj._test_named_parameters_and_buffers(prefix, recurse) without return types