public void setForecastedLifetime(Integer forecastedLifetime) {
        this.forecastedLifetime = forecastedLifetime;
    }
<p>
The amount of time you expect this version of your managed rule group to last, in days.
</p>

@param forecastedLifetime
       The amount of time you expect this version of your managed rule group to last, in days.
aws-java-sdk-wafv2/src/main/java/com/amazonaws/services/wafv2/model/ManagedRuleSetVersion.java