+#=item cust_credited_pkgnum PKGNUM
+#
+#=item cust_credit_bill_pkgnum PKGNUM
+#
+#Returns all applied credits (see L<FS::cust_credit_bill>) for this invoice
+#with matching pkgnum.
+#
+#=cut
+#
+#sub cust_credited_pkgnum {
+# my( $self, $pkgnum ) = @_;
+# map { $_ } #return $self->num_cust_credit_bill_pkgnum($pkgnum) unless wantarray;
+# sort { $a->_date <=> $b->_date }
+# qsearch( 'cust_credit_bill', { 'invnum' => $self->invnum,
+# 'pkgnum' => $pkgnum,
+# }
+# );
+#}
+#
+#sub cust_credit_bill_pkgnum {
+# shift->cust_credited_pkgnum(@_);
+#}