code: def test_module_doc_string(self):
      @torch.jit.interface
      class TestInterface(nn.Module):
          def one(self, inp1, inp2):
              # type: (Tensor, Tensor) -> Tensor
              pass
  
          def forward(self, input):
              # type: (Tensor) -> Tensor
              r"""stuff 1"""
              r"""stuff 2"""
              pass
              r"""stuff 3"""
  
      class TestModule(nn.Module):
          proxy_mod: TestInterface
  
          def __init__(self):
              super().__init__()
              self.proxy_mod = OrigModule()
  
          def forward(self, input):
              # type: (Tensor) -> Tensor
              return self.proxy_mod.forward(input)
  
      input = torch.randn(3, 4)
      self.checkModule(TestModule(), (input,))
  
imports: from typing import List, Any
  import torch
  import torch.nn
  import os
  import sys
  from torch import Tensor
  from torch.testing._internal.jit_utils import JitTestCase, make_global
label_desc: Use image node_id 3 for calling the TestModuleInterface obj's underlying member method code with example usage: obj.test_module_doc_string() and returns: self