code: def test_load_float_dpi(self, resolutionUnit, dpi):
      with Image.open(
          "Tests/images/hopper_float_dpi_"
          + str(resolutionUnit)
          + ".tif"
      ) as im:
          assert im.tag_v2.get(RESOLUTION_UNIT) == resolutionUnit
          assert im.info["dpi"] == (dpi, dpi)
  
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 11 for calling the TestFileTiff obj's underlying member method code with example usage: obj.test_load_float_dpi(resolutionUnit, dpi) without return types