public void setGenerationTimestamp(String generationTimestamp) {
        this.generationTimestamp = generationTimestamp;
    }
<p>
The timestamp for when Amazon Web Services made the recommendation.
</p>

@param generationTimestamp
       The timestamp for when Amazon Web Services made the recommendation.
aws-java-sdk-costexplorer/src/main/java/com/amazonaws/services/costexplorer/model/RightsizingRecommendationMetadata.java