code: def value(self, value):
          
          # For custom value
          if value not in self.options:
              if len(self.labels) == len(self.options):
                  self.options[-1] = value
              else:
                  self.options.append(value)
  
          self._value = value
docs: Setter for value.
  
          :param value: The value.
          :type value: object