code: def test_smoke(self, device, dtype):
      K = torch.rand(1, 3, 3, device=device, dtype=dtype)
      R = torch.rand(1, 3, 3, device=device, dtype=dtype)
      t = torch.rand(1, 3, 1, device=device, dtype=dtype)
      P = epi.projection_from_KRt(K, R, t)
      assert P.shape == (1, 3, 4)
  
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 TestProjectionFromKRt obj's underlying member method code with example usage: obj.test_smoke(device, dtype) without return types