Filter::field('name', [FilterType::NOT_IN]);
$filter = [ 'type' => '$notIn', 'target' => 'name', 'value' => ['Nuno', 'Maduro',] ];
$sql = Person::filter([$filter])->toRawSql();
select * from "people" where "people"."name" not in ('Nuno', 'Maduro')
select * from "people" where ( "people"."name" not in ('Nuno', 'Maduro') and "people"."name" is not null )