code: def update_search_space(self, search_space):
      self._space = search_space
  
file_path: nni/examples/tuners/customized_tuner/demo_tuner/demo_tuner.py
imports: import random
  import numpy
  from nni.tuner import Tuner
  from nni.utils import ClassArgsValidator
label_desc: Use image node_id 2 for calling the DemoTuner obj's underlying member method code with example usage: obj.update_search_space(search_space) without return types