code: def example(self, request, device, dtype):
      input, expected_norm, expected_px = request.param
      return (
          input.to(device, dtype),
          expected_norm.to(device, dtype),
          expected_px.to(device, dtype),
      )
  
file_path: kornia/test/geometry/subpix/test_dsnt.py
imports: import pytest
  import torch
  import kornia
  from kornia.testing import assert_close
label_desc: Use image node_id 1 for calling the TestSpatialExpectation2d obj's underlying member method code with example usage: obj.example(request, device, dtype) and returns: input,  expected_norm,  expected_px