code: def test_use_preset(self):
      self.link.nms_thresh = 0
      self.link.score_thresh = 0
  
      self.link.use_preset("visualize")
      self.assertEqual(self.link.nms_thresh, 0.45)
      self.assertEqual(self.link.score_thresh, 0.6)
  
      self.link.nms_thresh = 0
      self.link.score_thresh = 0
  
      self.link.use_preset("evaluate")
      self.assertEqual(self.link.nms_thresh, 0.45)
      self.assertEqual(self.link.score_thresh, 0.01)
  
      with self.assertRaises(ValueError):
          self.link.use_preset("unknown")
  
imports: import numpy
  import unittest
  import chainer
  from chainer import testing
  from chainer.testing import attr
  from chainercv.links.model.ssd import Multibox
  from chainercv.links.model.ssd import SSD
  from chainercv.utils import assert_is_detection_link
label_desc: Use image node_id 6 for calling the TestSSD obj's underlying member method code with example usage: obj.test_use_preset() without return types