code: def test_fixed_crop_norm(self):
      crop = FixedCrop(0.0, 0.0, 0.5, 1.0)
      self.transformer_test(crop)
  
imports: import pytest
  import os
  from bigdl.dllib.utils.common import *
  from bigdl.dllib.feature.transform.vision.image import *
  import tempfile
label_desc: Use image node_id 21 for calling the TestLayer obj's underlying member method code with example usage: obj.test_fixed_crop_norm() without return types