public default MemoryComputeKey getMemoryComputeKey() {
        return MemoryComputeKey.of(((Step) this).getId(), Operator.and, false, true);
    }
@author Marko A. Rodriguez (http://markorodriguez.com)
gremlin-core/src/main/java/org/apache/tinkerpop/gremlin/process/traversal/step/LocalBarrier.java