public static GremlinScriptEngineManager instance(){
        return cached;
    }
Provides static access to a {@link CachedGremlinScriptEngineManager} instance.

@author Stephen Mallette (http://stephen.genoprime.com)
gremlin-core/src/main/java/org/apache/tinkerpop/gremlin/jsr223/SingleGremlinScriptEngineManager.java