code: def test_openvino_graph(self):
      with SummaryWriter() as w:
          w.add_openvino_graph("examples/mobilenetv2.xml")
  
imports: import unittest
  from tensorboardX import SummaryWriter
label_desc: Use image node_id 1 for calling the OPENVINOGraphTest obj's underlying member method code with example usage: obj.test_openvino_graph() without return types