public CloudWatchMetricsDataSummary withTimestampMetricValuePairList(TimestampMetricValuePair... timestampMetricValuePairList) {
        if (this.timestampMetricValuePairList == null) {
            setTimestampMetricValuePairList(new java.util.ArrayList<TimestampMetricValuePair>(timestampMetricValuePairList.length));
        }
        for (TimestampMetricValuePair ele : timestampMetricValuePairList) {
            this.timestampMetricValuePairList.add(ele);
        }
        return this;
    }
<p>
This is a list of Amazon CloudWatch metric values at given timestamp.
</p>
<p>
<b>NOTE:</b> This method appends the values to the existing list (if any). Use
{@link #setTimestampMetricValuePairList(java.util.Collection)} or
{@link #withTimestampMetricValuePairList(java.util.Collection)} if you want to override the existing values.
</p>

@param timestampMetricValuePairList
       This is a list of Amazon CloudWatch metric values at given timestamp.
@return Returns a reference to this object so that method calls can be chained together.
aws-java-sdk-devopsguru/src/main/java/com/amazonaws/services/devopsguru/model/CloudWatchMetricsDataSummary.java