@Override
    public AssociateTransitGatewayRouteTableResult associateTransitGatewayRouteTable(AssociateTransitGatewayRouteTableRequest request) {
        request = beforeClientExecution(request);
        return executeAssociateTransitGatewayRouteTable(request);
    }
<p>
Associates the specified attachment with the specified transit gateway route table. You can associate only one
route table with an attachment.
</p>

@param associateTransitGatewayRouteTableRequest
@return Result of the AssociateTransitGatewayRouteTable operation returned by the service.
@sample AmazonEC2.AssociateTransitGatewayRouteTable
@see <a href="http://docs.aws.amazon.com/goto/WebAPI/ec2-2016-11-15/AssociateTransitGatewayRouteTable"
     target="_top">AWS API Documentation</a>
aws-java-sdk-ec2/src/main/java/com/amazonaws/services/ec2/AmazonEC2Client.java