code: def testDefaultImageSize(self):
      m = BaseNetwork(easydict.EasyDict({"architecture": "vgg_16"}))
      self.assertEqual(m.default_image_size, 224)
  
      m = BaseNetwork(
          easydict.EasyDict({"architecture": "resnet_v1_50"})
      )
      self.assertEqual(m.default_image_size, 224)
  
file_path: luminoth/luminoth/models/base/base_network_test.py
imports: import gc
  import easydict
  import numpy
  import tensorflow
  from luminoth.models.base.base_network import BaseNetwork, _R_MEAN, _G_MEAN, _B_MEAN, VALID_ARCHITECTURES
label_desc: Use image node_id 2 for calling the BaseNetworkTest obj's underlying member method code with example usage: obj.testDefaultImageSize() without return types