code: def assert_scale_me_scaling(self, hdr):
      # Assert that header `hdr` has "scale-me" scaling
      slope, inter = self._get_raw_scaling(hdr)
      if not slope is None:
          assert np.isnan(slope)
      if not inter is None:
          assert np.isnan(inter)
  
imports: import itertools
  import unittest
  from io import BytesIO
  import numpy
  import pytest
  from numpy.testing import assert_array_almost_equal, assert_array_equal
  from ..optpkg import optional_package
  from ..casting import sctypes_aliases, shared_range, type_info
  from ..spatialimages import HeaderDataError
  from ..spm99analyze import HeaderTypeError, Spm99AnalyzeHeader, Spm99AnalyzeImage
  from ..testing import assert_allclose_safely, bytesio_filemap, bytesio_round_trip, suppress_warnings
  from ..volumeutils import _dt_min_max, apply_read_scaling
  from .None import test_analyze
label_desc: Use image node_id 2 for calling the ImageScalingMixin obj's underlying member method code with example usage: obj.assert_scale_me_scaling(hdr) without return types