public QueryStringCacheKeys withQuantity(Integer quantity) {
        setQuantity(quantity);
        return this;
    }
<p>
The number of <code>whitelisted</code> query string parameters for a cache behavior.
</p>

@param quantity
       The number of <code>whitelisted</code> query string parameters for a cache behavior.
@return Returns a reference to this object so that method calls can be chained together.
aws-java-sdk-cloudfront/src/main/java/com/amazonaws/services/cloudfront/model/QueryStringCacheKeys.java