code: def test_roundtrip_tiff_uint16(self, tmp_path):
      # Test an image of all '0' values
      pixel_value = 0x1234
      infile = "Tests/images/uint16_1_4660.tif"
      with Image.open(infile) as im:
          assert im.getpixel((0, 0)) == pixel_value
  
          tmpfile = str(tmp_path / "temp.tif")
          im.save(tmpfile)
  
          assert_image_equal_tofile(im, tmpfile)
  
imports: import os
  from io import BytesIO
  import pytest
  from PIL import Image, ImageFile, TiffImagePlugin
  from PIL.TiffImagePlugin import RESOLUTION_UNIT, X_RESOLUTION, Y_RESOLUTION
  from .helper import assert_image_equal, assert_image_equal_tofile, assert_image_similar, assert_image_similar_tofile, hopper, is_pypy, is_win32
label_desc: Use image node_id 47 for calling the TestFileTiff obj's underlying member method code with example usage: obj.test_roundtrip_tiff_uint16(tmp_path) without return types