code: def test_unsqueeze(self) -> None:
      x = torch.randn((2, 3, 4, 5))
      actual = rearrange(x, "b h w c -> b 1 h w 1 c")
      expected = x.unsqueeze(1).unsqueeze(-2)
      torch.testing.assert_close(actual, expected)
  
file_path: pytorch/test/functorch/test_rearrange.py
imports: from typing import List, Tuple
  import numpy
  import torch
  from functorch.einops import rearrange
  from torch.testing._internal.common_utils import TestCase, run_tests
label_desc: Use image node_id 6 for calling the TestRearrange obj's underlying member method code with example usage: obj.test_unsqueeze() without return types