code: def test_lazy_awaitable_serde(self) -> None:
      class Model(torch.nn.Module):
          def __init__(self):
              super().__init__()
              self.async_compute = AsyncModule()
  
          def forward(self, x: torch.Tensor) -> torch.Tensor:
              async_fut = self.async_compute(x)
              y = x * 3 + 5
              return torch.add(async_fut, y)
  
      m = Model()
      gm = torch.fx.symbolic_trace(m)
  
      import pickle
      import tempfile
  
      tempFile = None
      with tempfile.NamedTemporaryFile(delete=False) as f:
          # pyre-fixme[6]: For 2nd argument expected `SupportsWrite[bytes]` but
          #  got `_TemporaryFileWrapper[bytes]`.
          pickle.dump(gm, f)
          tempFile = f
  
      with open(tempFile.name, "rb") as f:
          loaded = pickle.load(f)
  
          ref_res = loaded(torch.ones(3, 4))
          self.assertTrue(torch.equal(ref_res, 17 * torch.ones(3, 4)))
  
      tempFile.close()
  
imports: import unittest
  from typing import Dict
  import torch
  import torch.fx
  from torchrec.distributed.types import LazyAwaitable
label_desc: Use image node_id 9 for calling the TestLazyAwaitable obj's underlying member method code with example usage: obj.test_lazy_awaitable_serde() and returns: torch