public void setTransitGatewayRouteTableArn(String transitGatewayRouteTableArn) {
        this.transitGatewayRouteTableArn = transitGatewayRouteTableArn;
    }
<p>
The ARN of the transit gateway route table for the attachment request. For example,
<code>"TransitGatewayRouteTableArn": "arn:aws:ec2:us-west-2:123456789012:transit-gateway-route-table/tgw-rtb-9876543210123456"</code>
.
</p>

@param transitGatewayRouteTableArn
       The ARN of the transit gateway route table for the attachment request. For example,
       <code>"TransitGatewayRouteTableArn": "arn:aws:ec2:us-west-2:123456789012:transit-gateway-route-table/tgw-rtb-9876543210123456"</code>
       .
aws-java-sdk-networkmanager/src/main/java/com/amazonaws/services/networkmanager/model/CreateTransitGatewayRouteTableAttachmentRequest.java