public WarmTierRetentionPeriod withNumberOfDays(Integer numberOfDays) {
        setNumberOfDays(numberOfDays);
        return this;
    }
<p>
The number of days the data is stored in the warm tier.
</p>

@param numberOfDays
       The number of days the data is stored in the warm tier.
@return Returns a reference to this object so that method calls can be chained together.
aws-java-sdk-iotsitewise/src/main/java/com/amazonaws/services/iotsitewise/model/WarmTierRetentionPeriod.java