public Recommendation withLastRefreshTimestamp(java.util.Date lastRefreshTimestamp) {
        setLastRefreshTimestamp(lastRefreshTimestamp);
        return this;
    }
<p>
The time when the recommendation was last generated.
</p>

@param lastRefreshTimestamp
       The time when the recommendation was last generated.
@return Returns a reference to this object so that method calls can be chained together.
aws-java-sdk-costoptimizationhub/src/main/java/com/amazonaws/services/costoptimizationhub/model/Recommendation.java