class_docstr: An object that holds the param to be set, for testing purposes.
code: def _set_param(self, value):
      self.param_history[self.trainer.global_step] = value
  
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 3 for calling the ParamObject obj's underlying member method code with example usage: obj._set_param(value) without return types