public void setTimestamp(java.util.Date timestamp) {
        this.timestamp = timestamp;
    }
<p>
<b>Internal only</b>. The time the metric data was received.
</p>

@param timestamp
       <b>Internal only</b>. The time the metric data was received.
aws-java-sdk-mwaa/src/main/java/com/amazonaws/services/mwaa/model/MetricDatum.java