@Override
    public Bindings createBindings() {
        return new SimpleBindings();
    }
Gremlin scripts evaluated by the grammar must be bound to "g" and should evaluate to a "g" in the
{@code ScriptContext} that is of type {@link TraversalSource}
gremlin-core/src/main/java/org/apache/tinkerpop/gremlin/jsr223/GremlinLangScriptEngine.java