public EstimateByTime withUsageCost(Double usageCost) {
        setUsageCost(usageCost);
        return this;
    }
<p>
The amount of cost or usage that's measured for the cost estimate.
</p>

@param usageCost
       The amount of cost or usage that's measured for the cost estimate.
@return Returns a reference to this object so that method calls can be chained together.
aws-java-sdk-lightsail/src/main/java/com/amazonaws/services/lightsail/model/EstimateByTime.java