code: def set_config(self):
      self.cfg_file = (
          "configs/cascade_rcnn/cascade_rcnn_r50_fpn_1x_coco.yml"
      )
  
imports: from __future__ import absolute_import
  from __future__ import division
  from __future__ import print_function
  import unittest
  import ppdet
label_desc: Use image node_id 1 for calling the TestCascadeRCNN obj's underlying member method code with example usage: obj.set_config() without return types