public ListNamedShadowsForThingResult withTimestamp(Long timestamp) {
        setTimestamp(timestamp);
        return this;
    }
<p>
The Epoch date and time the response was generated by IoT.
</p>

@param timestamp
       The Epoch date and time the response was generated by IoT.
@return Returns a reference to this object so that method calls can be chained together.
aws-java-sdk-iot/src/main/java/com/amazonaws/services/iotdata/model/ListNamedShadowsForThingResult.java