code: def package(self, value):
          
  
          if value is not None:
              assert type(value) is unicode, "'{0}' attribute: '{1}' type is not 'unicode'!".format(
                  "package", value)
          self.__package = value
docs: Setter for **self.__package** attribute.
  
          :param value: Attribute value.
          :type value: unicode