code: def test_clip_unsigned_saliency(self):
      a = np.linspace(0, 100, num=101, endpoint=True)
      a_clipped = image_utils.clip_unsigned_saliency(a, fraction=0.1)
      self.assertEqual(a_clipped.min(), 0)
      self.assertEqual(a_clipped.max(), 90)
      self.assertLen(np.argwhere(a_clipped == 0), 1)
      self.assertLen(np.argwhere(a_clipped == 90), 11)
  
file_path: lit/lit_nlp/lib/image_utils_test.py
imports: from absl.testing import absltest
  from absl.testing import parameterized
  from lit_nlp.lib import image_utils
  import numpy
  from PIL import Image
label_desc: Use image node_id 4 for calling the ImageUtilsTest obj's underlying member method code with example usage: obj.test_clip_unsigned_saliency() without return types