public ValidStorageOptions withStorageThroughputToIopsRatio(DoubleRange... storageThroughputToIopsRatio) {
        if (this.storageThroughputToIopsRatio == null) {
            setStorageThroughputToIopsRatio(new com.amazonaws.internal.SdkInternalList<DoubleRange>(storageThroughputToIopsRatio.length));
        }
        for (DoubleRange ele : storageThroughputToIopsRatio) {
            this.storageThroughputToIopsRatio.add(ele);
        }
        return this;
    }
<p>
The valid range of storage throughput to provisioned IOPS ratios. For example, 0-0.25.
</p>
<p>
<b>NOTE:</b> This method appends the values to the existing list (if any). Use
{@link #setStorageThroughputToIopsRatio(java.util.Collection)} or
{@link #withStorageThroughputToIopsRatio(java.util.Collection)} if you want to override the existing values.
</p>

@param storageThroughputToIopsRatio
       The valid range of storage throughput to provisioned IOPS ratios. For example, 0-0.25.
@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