code: def set_password_ibm(self, password_ibm):
          
          if self.get_mode() == "ibm":
              self.__password_ibm = password_ibm
          else:
              raise Exception(
                  "Mode is {}, whereas it must be `ibm`".format(self.get_mode()))
docs: Parameters
          ----------
          password_ibm : str
  
          Raises
          ------
          Exception
              If mode is not `ibm`