code: def test_init_tf_net(self):
      tfnet_path = os.path.join(TestTF.resource_path, "tfnet")
      net = TFNet.from_export_folder(tfnet_path)
      output = net.forward(np.random.rand(2, 4))
      assert output.shape == (2, 2)
  
file_path: BigDL/python/orca/test/bigdl/orca/tfpark/test_tfnet.py
imports: import pytest
  from bigdl.orca.test_zoo_utils import ZooTestCase
  from bigdl.orca.tfpark import TFNet, TFDataset
  from bigdl.dllib.utils.common import *
label_desc: Use image node_id 1 for calling the TestTF obj's underlying member method code with example usage: obj.test_init_tf_net() without return types