private void addEntry(final String group, final Object obj, final String title, final String description) {
        addEntry(group, obj, title, description, null);
    }
Defines the supported types for IO and the versions (and configurations) to which they apply and are tested.

@author Stephen Mallette (http://stephen.genoprime.com)
gremlin-util/src/test/java/org/apache/tinkerpop/gremlin/structure/io/Model.java