public String getLookbackPeriodInDays() {
        return this.lookbackPeriodInDays;
    }
<p>
The number of days of previous usage that Amazon Web Services considers when making the recommendation.
</p>

@return The number of days of previous usage that Amazon Web Services considers when making the recommendation.
@see LookbackPeriodInDays
aws-java-sdk-costexplorer/src/main/java/com/amazonaws/services/costexplorer/model/RightsizingRecommendationMetadata.java