public default Traversal.Admin<S, E> asAdmin() {
        return (Traversal.Admin<S, E>) this;
    }
Get access to administrative methods of the traversal via its accompanying {@link Traversal.Admin}.

@return the admin of this traversal
gremlin-core/src/main/java/org/apache/tinkerpop/gremlin/process/traversal/Traversal.java