@abc.abstractmethod<EOL><INDENT>def get_yoctoseconds(self):<DEDENT>
return<EOL>
Gets the number of yoctoseconds.

        A yoctosecond is one septillionth of a second. This is getting
        quite small.

        :return: the number of yoctoseconds
        :rtype: ``decimal``


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