public static TinkerTransactionGraph open() {
        return open(EMPTY_CONFIGURATION);
    }
Open a new {@link TinkerTransactionGraph} instance.
<p/>
<b>Reference Implementation Help:</b> If a {@link Graph} implementation does not require a {@code Configuration}
(or perhaps has a default configuration) it can choose to implement a zero argument
{@code open()} method. This is an optional constructor method for TinkerGraph. It is not enforced by the Gremlin
Test Suite.
tinkergraph-gremlin/src/main/java/org/apache/tinkerpop/gremlin/tinkergraph/structure/TinkerTransactionGraph.java