code: def test_empty(self):
      pathlib.Path(temp("dt1")).unlink(missing_ok=True)
      Tensor.empty(100, 100, device=f"disk:{temp('dt1')}")
  
imports: import pathlib, unittest
  import numpy
  from tinygrad import Tensor, Device, dtypes
  from tinygrad.nn.state import safe_load, safe_save, get_state_dict, torch_load
  from tinygrad.helpers import Timing, CI, fetch, temp
label_desc: Use image node_id 1 for calling the TestDiskTensor obj's underlying member method code with example usage: obj.test_empty() without return types