code: def set_process_type(self, value):
          
          if value is None or not isinstance(value, str):
              raise TypeError("ProcessType must be set to a String")
          elif value not in Process.__process_type_list:
              raise ValueError("ProcessType must be one of specified values: 'None', 'Public', 'Private'")
          else:
              self.__process_type = value
docs: Setter for 'process_type' field.
          :param value - a new value of 'process_type' field.