public ConfigurableUpfrontRateCardItem withRateCard(RateCardItem... rateCard) {
        if (this.rateCard == null) {
            setRateCard(new java.util.ArrayList<RateCardItem>(rateCard.length));
        }
        for (RateCardItem ele : rateCard) {
            this.rateCard.add(ele);
        }
        return this;
    }
<p>
Defines the per unit rates for product dimensions.
</p>
<p>
<b>NOTE:</b> This method appends the values to the existing list (if any). Use
{@link #setRateCard(java.util.Collection)} or {@link #withRateCard(java.util.Collection)} if you want to override
the existing values.
</p>

@param rateCard
       Defines the per unit rates for product dimensions.
@return Returns a reference to this object so that method calls can be chained together.
aws-java-sdk-marketplaceagreement/src/main/java/com/amazonaws/services/marketplaceagreement/model/ConfigurableUpfrontRateCardItem.java