private static void printFeatureTitle(final Class<? extends Graph.Features.FeatureSet> featureClass, final StringBuilder sb) {
        sb.append("> ");
        sb.append(featureClass.getSimpleName());
        sb.append(LINE_SEPARATOR);
    }
Construct the representation for a {@link Graph}.

@param internalString a mapper {@link String} that appends to the end of the standard representation
gremlin-core/src/main/java/org/apache/tinkerpop/gremlin/structure/util/StringFactory.java