@FeatureDescriptor(name = FEATURE_ADD_PROPERTY)
            default boolean supportsAddProperty() {
                return true;
            }
Determines if an {@link Element} allows properties to be added.  This feature is set independently from
supporting "data types" and refers to support of calls to {@link Element#property(String, Object)}.
gremlin-core/src/main/java/org/apache/tinkerpop/gremlin/structure/Graph.java