code: def test_smoke(self, device, dtype):
      P = torch.randn(1, 3, 4, device=device, dtype=dtype)
      K, R, t = epi.KRt_from_projection(P)
      assert K.shape == (1, 3, 3)
      assert R.shape == (1, 3, 3)
      assert t.shape == (1, 3, 1)
  
imports: import pytest
  import torch
  from torch.autograd import gradcheck
  import kornia.geometry.epipolar
  from kornia.testing import assert_close
label_desc: Use image node_id 1 for calling the TestKRtFromProjection obj's underlying member method code with example usage: obj.test_smoke(device, dtype) without return types