+has _mergedwith_array =>
+ (is => 'ro',
+ isa => 'ArrayRef[Int]',
+ builder => '_build_mergedwith_array',
+ lazy => 1,
+ );
+
+sub _build_mergedwith_array {
+ my $self = shift;
+ return [sort {$a <=> $b}
+ $self->_split_if_defined('mergedwith')];
+}
+