public ParticipatingGateways withGatewayList(java.util.Collection<GatewayListItem> gatewayList) {
        setGatewayList(gatewayList);
        return this;
    }
<p>
The list of gateways that you want to use for sending the downlink data traffic.
</p>

@param gatewayList
       The list of gateways that you want to use for sending the downlink data traffic.
@return Returns a reference to this object so that method calls can be chained together.
aws-java-sdk-iotwireless/src/main/java/com/amazonaws/services/iotwireless/model/ParticipatingGateways.java