@abc.abstractmethod<EOL><INDENT>def get_numeric_formatting_session(self):<DEDENT>
return<EOL>
Gets an ``OsidSession`` associated with the numeric formatting service.

        :return: a ``NumericFormattingSession``
        :rtype: ``osid.locale.NumericFormattingSession``
        :raise: ``OperationFailed`` -- unable to complete request
        :raise: ``Unimplemented`` -- ``supports_numeric_formatting()`` is ``false``

        *compliance: optional -- This method must be implemented if
        ``supports_numeric_formatting()`` is ``true``.*