my $meta = __PACKAGE__->meta;
my $tc1 = $meta->find_attribute_by_name('from')->type_constraint;
my $tc2 = $meta->find_attribute_by_name('to')->type_constraint;
my $meta = __PACKAGE__->meta;
my $tc1 = $meta->find_attribute_by_name('from')->type_constraint;
my $tc2 = $meta->find_attribute_by_name('to')->type_constraint;