code: def test_mask_rcnn_fpn(self):
      self._build_lazy_model("mask_rcnn_fpn.py")
  
file_path: detectron2/tests/test_model_zoo.py
imports: import logging
  import unittest
  from detectron2 import model_zoo
  from detectron2.config import instantiate
  from detectron2.modeling import FPN, GeneralizedRCNN
label_desc: Use image node_id 5 for calling the TestModelZoo obj's underlying member method code with example usage: obj.test_mask_rcnn_fpn() without return types