docstr: Ensure we can do a forward/backward through an auto-wrapped model.
docstr_tok: ["Ensure","we","can","do","a","forward\/backward","through","an","auto-wrapped","model","."]
code: def test_auto_wrap_smoke_autocast(self):
      """
      Ensure we can do a forward/backward through an auto-wrapped model.
      """
      self._auto_wrap_smoke_test(enable_mixed_precision=True)
  
imports: import functools
  import os
  import random
  import unittest
  import torch
  import torch.nn
  import torch.nn.functional
  from fairscale.fair_dev.testing.testing import DummyProcessGroup
  from fairscale.nn import FullyShardedDataParallel
  from fairscale.nn import auto_wrap, default_auto_wrap_policy, enable_wrap, wrap
label_desc: Use image node_id 11 for calling the TestAutoWrap obj's underlying member method code with example usage: obj.test_auto_wrap_smoke_autocast() without return types