code: def test_bytescale_cscale_lowhigh(self):
      a = np.arange(10)
      with suppress_warnings() as sup:
          sup.filter(DeprecationWarning)
          actual = misc.bytescale(a, cmin=3, cmax=6, low=100, high=200)
      expected = [100, 100, 100, 100, 133, 167, 200, 200, 200, 200]
      assert_equal(actual, expected)
  
imports: from __future__ import division, print_function, absolute_import
  import os.path
  import tempfile
  import shutil
  import numpy
  import glob
  import pytest
  from pytest import raises
  from numpy.testing import assert_equal, assert_allclose, assert_array_equal, assert_
  from scipy._lib._numpy_compat import suppress_warnings
  from scipy import misc
  from numpy.ma.testutils import assert_mask_equal
label_desc: Use image node_id 8 for calling the TestPILUtil obj's underlying member method code with example usage: obj.test_bytescale_cscale_lowhigh() without return types