code: def tearDown(self):
      tf.reset_default_graph()
  
imports: import unittest
  from ..compat import tfv1
  from ..utils import logger
  from ..train.trainers import NoOpTrainer
  from ..input_source import DummyConstantInput
  from .param import ScheduledHyperParamSetter, ObjAttrParam
label_desc: Use image node_id 2 for calling the ScheduledHyperParamSetterTest obj's underlying member method code with example usage: obj.tearDown() without return types