code: def add_hyperparameters(self):
      HP = CS.UniformIntegerHyperparameter("int1", lower=-2, upper=2)
      self.configspace.add_hyperparameter(HP)
  
imports: import os
  import unittest
  import numpy
  import statsmodels.api
  import ConfigSpace
  from hpbandster.optimizers.kde.mvkde import MultivariateKDE
  from pdb import set_trace
label_desc: Use image node_id 1 for calling the Test1dInteger obj's underlying member method code with example usage: obj.add_hyperparameters() without return types