code: def setUp(self, mock_load):
      mock_load.side_effect = lambda *x, **y: None
      self.inferencer = TextDetInferencer("DB_r18")
      seed = 1
      random.seed(seed)
      np.random.seed(seed)
      torch.manual_seed(seed)
  
imports: import os.path
  import random
  import tempfile
  from unittest import TestCase, mock
  import mmcv
  import mmengine
  import numpy
  import torch
  from mmengine.structures import InstanceData
  from mmocr.apis.inferencers import TextDetInferencer
  from mmocr.utils.check_argument import is_type_list
  from mmocr.utils.typing_utils import TextDetDataSample
label_desc: Use image node_id 1 for calling the TestTextDetinferencer obj's underlying member method code with example usage: obj.setUp(mock_load) without return types