code: def test_singleton_tuple_unpack(self):
      def foo(a):
          (b,) = (a,)
          return b + 1
  
      self.checkScript(foo, (torch.rand(3),))
  
imports: import os
  import sys
  import torch
  from torch.testing._internal.jit_utils import JitTestCase, make_global
  from torch.testing._internal.common_utils import IS_WINDOWS
  from collections import namedtuple
  from typing import List, Tuple, Dict, NamedTuple
label_desc: Use image node_id 29 for calling the TestTyping obj's underlying member method code with example usage: obj.test_singleton_tuple_unpack() and returns: unknown