code: def setUp(self):
      cfg_path = "textdet/drrg/drrg_resnet50_fpn-unet_1200e_ctw1500.py"
      self.model_cfg = self._get_detector_cfg(cfg_path)
      cfg = self._get_config_module(cfg_path)
      init_default_scope(cfg.get("default_scope", "mmocr"))
      self.model = MODELS.build(self.model_cfg)
      self.inputs = create_dummy_textdet_inputs(
          input_shape=(1, 3, 224, 224)
      )
  
file_path: mmocr/tests/test_models/test_textdet/test_detectors/test_drrg.py
imports: import copy
  import unittest
  from os.path import dirname, exists, join
  from unittest import mock
  import numpy
  import torch
  from mmengine.config import Config, ConfigDict
  from mmengine.registry import init_default_scope
  from mmocr.registry import MODELS
  from mmocr.testing.data import create_dummy_textdet_inputs
label_desc: Use image node_id 1 for calling the TestDRRG obj's underlying member method code with example usage: obj.setUp() without return types