@Override
        public int hashCode() {
            return this.lambdaSource.hashCode() + this.lambdaLanguage.hashCode() + this.lambdaArguments;
        }
Provides a way to serialize string lambdas as scripts which can be evaluated by a {@link GremlinScriptEngine}.

@author Marko A. Rodriguez (http://markorodriguez.com)
@author Stephen Mallette (http://stephen.genoprime.com)
gremlin-core/src/main/java/org/apache/tinkerpop/gremlin/util/function/Lambda.java