@FeatureDescriptor(name = FEATURE_IO_WRITE)
            default boolean supportsIoWrite() {
                return true;
            }
Determines if the {@code Graph} implementations supports write operations as executed with the
{@link GraphTraversalSource#io(String)} step. Graph implementations will generally support this by
default given the standard TinkerPop {@link GraphWriter} implementations. However, some graphs like
{@code HadoopGraph} will use a different approach to handle writes.
gremlin-core/src/main/java/org/apache/tinkerpop/gremlin/structure/Graph.java