@Override
        public boolean test(final Object first, final Collection second) {
            return !within.test(first, second);
        }
The first object is not within the {@code Collection} provided in the second object. The second object may not be
{@code null}.

@since 3.0.0-incubating
gremlin-core/src/main/java/org/apache/tinkerpop/gremlin/process/traversal/Contains.java