code: def test_skippable_repr():
      @skippable(stash=["hello"])
      class Hello(nn.Module):
          def __init__(self):
              super().__init__()
              self.conv = nn.Conv2d(1, 1, 1)
  
          def forward(self, x):
              yield stash("hello", x)
              return self.conv(x)  # noqa: B901
  
      m = Hello()
      assert (
          repr(m)
          == """
  @skippable(Hello(
    (conv): Conv2d(1, 1, kernel_size=(1, 1), stride=(1, 1))
  ))
  """.strip()
      )
  
imports: import copy
  from torch import nn
  from torch.distributed.pipeline.sync.skip import Namespace, skippable, stash
  from torch.testing._internal.common_utils import run_tests
label_desc: Use image node_id 3 for calling a global function with example usage: test_skippable_repr() and returns: self