public static <V> P<V> within(final Collection<V> value) {
        if (null == value) return P.within((V) null);
        return new P(Contains.within, value);
    }
Determines if a value is within the specified list of values. Calling this with {@code null} is the same as
calling {@link #within(Object[])} using {@code null}.

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