code: def test_max_none(self):
      for p in TEST_NDARRAYS:
          scaler = ScaleIntensity(minv=0.0, maxv=None, factor=0.1)
          result = scaler(p(self.imt))
          expected = rescale_array(p(self.imt), minv=0.0, maxv=None)
          assert_allclose(
              result, expected, type_test="tensor", rtol=1e-3, atol=1e-3
          )
  
file_path: MONAI/tests/test_scale_intensity.py
imports: from __future__ import annotations
  import unittest
  import numpy
  from parameterized import parameterized
  from monai.transforms import ScaleIntensity
  from monai.transforms.utils import rescale_array
  from tests.utils import TEST_NDARRAYS, NumpyImageTestCase2D, assert_allclose
label_desc: Use image node_id 3 for calling the TestScaleIntensity obj's underlying member method code with example usage: obj.test_max_none() without return types