public UpdateGatewaySoftwareNowResult withGatewayArn(String gatewayArn) {
        setGatewayArn(gatewayArn);
        return this;
    }
<p>
The Amazon Resource Name (ARN) of the gateway you updated.
</p>

@param gatewayArn
       The Amazon Resource Name (ARN) of the gateway you updated.
@return Returns a reference to this object so that method calls can be chained together.
aws-java-sdk-backupgateway/src/main/java/com/amazonaws/services/backupgateway/model/UpdateGatewaySoftwareNowResult.java