code: def test_0_dim_tensor(self) -> None:
      x = expected = torch.tensor(1)
      actual = rearrange(x, "->")
      torch.testing.assert_close(actual, expected)
  
      actual = rearrange(x, "... -> ...")
      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 8 for calling the TestRearrange obj's underlying member method code with example usage: obj.test_0_dim_tensor() without return types