@Override
    public void apply(final Traversal.Admin<?, ?> traversal) {
        // has no effect on the traversal itself - simply carries a options with it that individual steps
        // can choose to use or not.
    }
Gets the options on the strategy as an immutable {@code Map}.
gremlin-core/src/main/java/org/apache/tinkerpop/gremlin/process/traversal/strategy/decoration/OptionsStrategy.java