package PublicInbox::DummyInbox;
use strict;
-sub created_at { 0 } # Msgmap::created_at
+sub uidvalidity { 0 } # Msgmap::created_at
sub mm { shift }
sub uid_range { [] } # Over::uid_range
sub subscribe_unlock { undef };
no warnings 'once';
-*max = \&created_at;
+*max = \&uidvalidity;
*query_xover = \&uid_range;
*over = \&mm;
*search = *unsubscribe_unlock =