code: def handle_initialize(self, data):
          '''
          data is search space
          '''
          self.tuner.update_search_space(data)
          send(CommandType.Initialized, '')
          return Truf handle_initialize(self, data):
          '''
          data is search space
          '''
          self.tuner.update_search_space(data)
          send(CommandType.Initialized, '')
          return True
docs: data is search space