code: def test_print_smoke(self):
      img = torch.rand(3, 15, 15)
      print_image(img)
  
imports: import pytest
  import torch
  from kornia.utils import image_to_string, print_image
label_desc: Use image node_id 3 for calling the TestImageToString obj's underlying member method code with example usage: obj.test_print_smoke() without return types