=item cdrtypenum - CDR type (see L<FS::cdr_type>) if any for this rate
+=item region_group - Group in region group for rate plan
+
=back
=head1 METHODS
|| $self->ut_number('sec_granularity')
|| $self->ut_foreign_keyn('classnum', 'usage_class', 'classnum' )
+ || $self->ut_enum('region_group', [ '', 'Y' ])
;
return $error if $error;