public void setTransitGatewayArn(String transitGatewayArn) {
        this.transitGatewayArn = transitGatewayArn;
    }
<p>
The Amazon Resource Name (ARN) of the transit gateway.
</p>

@param transitGatewayArn
       The Amazon Resource Name (ARN) of the transit gateway.
aws-java-sdk-networkmanager/src/main/java/com/amazonaws/services/networkmanager/model/RegisterTransitGatewayRequest.java