public ValidStorageOptions withStorageSize(Range... storageSize) {
        if (this.storageSize == null) {
            setStorageSize(new com.amazonaws.internal.SdkInternalList<Range>(storageSize.length));
        }
        for (Range ele : storageSize) {
            this.storageSize.add(ele);
        }
        return this;
    }
<p>
The valid range of storage in gibibytes (GiB). For example, 100 to 16,384.
</p>
<p>
<b>NOTE:</b> This method appends the values to the existing list (if any). Use
{@link #setStorageSize(java.util.Collection)} or {@link #withStorageSize(java.util.Collection)} if you want to
override the existing values.
</p>

@param storageSize
       The valid range of storage in gibibytes (GiB). For example, 100 to 16,384.
@return Returns a reference to this object so that method calls can be chained together.
aws-java-sdk-rds/src/main/java/com/amazonaws/services/rds/model/ValidStorageOptions.java