code: def _build_lazy_model(self, name):
      cfg = model_zoo.get_config("common/models/" + name)
      instantiate(cfg.model)
  
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 4 for calling the TestModelZoo obj's underlying member method code with example usage: obj._build_lazy_model(name) without return types