code: def test_max_memory_used_slowmo_no_sharding() -> None:
      world_size = 2
      spawn_for_all_world_sizes(
          run_max_memory_used_slowmo_no_sharding,
          world_sizes=[world_size],
          args=(),
          deterministic=True,
      )
  
imports: import copy
  import os
  import tempfile
  from typing import Any, Dict, List, Tuple, Type
  import unittest
  import pytest
  import torch
  from torch import nn
  import torch.distributed
  import torch.nn.functional
  import fairscale.experimental.nn.data_parallel.gossip
  from fairscale.fair_dev.testing.testing import skip_if_single_gpu, spawn_for_all_world_sizes
label_desc: Use image node_id 16 for calling a global function with example usage: test_max_memory_used_slowmo_no_sharding() without return types