code: def test_boundingboxesonimage(self):
      observed = _quokka_normalize_extract(
          ia.BoundingBoxesOnImage(
              [ia.BoundingBox(x1=1, y1=1, x2=644, y2=642)],
              shape=(643, 960, 3),
          )
      )
      assert isinstance(observed, ia.BoundingBox)
      assert observed.x1 == 1
      assert observed.y1 == 1
      assert observed.x2 == 644
      assert observed.y2 == 642
  
imports: from __future__ import print_function, division, absolute_import
  import warnings
  import sys
  import numpy
  import imgaug
  import imgaug.data
  from imgaug.data import _quokka_normalize_extract, _compute_resized_shape
label_desc: Use image node_id 4 for calling the Test__quokka_normalize_extract obj's underlying member method code with example usage: obj.test_boundingboxesonimage() without return types