public Builder transformResult(final Function<Object, Object> transformResult) {
                this.transformResult = transformResult;
                return this;
            }
Specifies the function to execute on the result of the script evaluation just after script evaluation
returns but before the script evaluation is marked as complete.
gremlin-groovy/src/main/java/org/apache/tinkerpop/gremlin/groovy/engine/GremlinExecutor.java