code: def test_zero_sized(self):
      data = {
          "test": torch.zeros((2, 0), dtype=torch.float),
      }
      local = "./tests/data/out_safe_pt_mmap_small2.safetensors"
      save_file(data, local)
      reloaded = load_file(local)
      self.assertTrue(torch.equal(data["test"], reloaded["test"]))
  
imports: import sys
  import unittest
  import torch
  from safetensors import safe_open
  from safetensors.torch import load, load_file, save, save_file
label_desc: Use image node_id 3 for calling the TorchTestCase obj's underlying member method code with example usage: obj.test_zero_sized() without return types