code: def set_nlp_base(self, value):
          ''' setter '''
          if isinstance(value, NlpBase) is False:
              raise TypeError("The type of value must be NlpBase.")
          
          self.__nlp_base = valuf set_nlp_base(self, value):
          ''' setter '''
          if isinstance(value, NlpBase) is False:
              raise TypeError("The type of value must be NlpBase.")
          
          self.__nlp_base = value
docs: setter