code: def set_integer(self, option, value):
          
          try:
              int_value = int(value)
          except ValueError as err:
              print(err.args)
  
          self.options[option] = value
docs: Set an integer option.
  
              Args:
                  option (str): name of option.
                  value (int): value of the option.
  
              Raises:
                  ValueError: Value must be an integer.