public GetFreeTierUsageRequest withFilter(Expression filter) {
        setFilter(filter);
        return this;
    }
<p>
An expression that specifies the conditions that you want each <code>FreeTierUsage</code> object to meet.
</p>

@param filter
       An expression that specifies the conditions that you want each <code>FreeTierUsage</code> object to meet.
@return Returns a reference to this object so that method calls can be chained together.
aws-java-sdk-freetier/src/main/java/com/amazonaws/services/freetier/model/GetFreeTierUsageRequest.java