$self->base_recur_permonth(@_) - $self->recur_cost_permonth(@_);
}
+=item intro_end PACKAGE
+
+Takes an L<FS::cust_pkg> object. If this plan has an introductory rate,
+returns the expected date the intro period will end. If there is no intro
+rate, returns zero.
+
+=cut
+
+sub intro_end {
+ 0;
+}
+
=item format OPTION DATA
Returns data formatted according to the function 'format' described