@abc.abstractmethod<EOL><INDENT>def get_units(self):<DEDENT>
return<EOL>
Gets the units of this data for display purposes ('lbs', 'gills', 'furlongs').

        :return: the display units of this data or an empty string if not applicable
        :rtype: ``osid.locale.DisplayText``


        *compliance: mandatory -- This method must be implemented.*