code: def test_forth_and_back(self, device, dtype):  # skipcq: PYL-R0201
      data = torch.rand(1, 80, 80, device=device, dtype=dtype)
      raw = kornia.color.rgb_to_raw
      rgb = kornia.color.raw_to_rgb
  
      for x in kornia.color.CFA:
          data_out = raw(rgb(data, cfa=x), cfa=x)
          assert_close(data_out, data)
  
imports: import warnings
  import pytest
  import torch
  from packaging import version
  from torch.autograd import gradcheck
  import kornia
  from kornia.testing import BaseTester, assert_close
label_desc: Use image node_id 4 for calling the TestRawToRgb obj's underlying member method code with example usage: obj.test_forth_and_back(device, dtype) without return types