@FeatureDescriptor(name = FEATURE_ANY_IDS)
            default boolean supportsAnyIds() {
                return true;
            }
Determines if an {@link Element} any Java object is a suitable identifier. TinkerGraph is a good
example of a {@link Graph} that can support this feature, as it can use any {@link Object} as
a value for the identifier.
<p/>
Note that this feature is most generally used for determining the appropriate tests to execute in the
Gremlin Test Suite. This setting should only return {@code true} if {@link #supportsUserSuppliedIds()}
is {@code true}.
gremlin-core/src/main/java/org/apache/tinkerpop/gremlin/structure/Graph.java