@Override
    public ModifyTransitGatewayResult modifyTransitGateway(ModifyTransitGatewayRequest request) {
        request = beforeClientExecution(request);
        return executeModifyTransitGateway(request);
    }
<p>
Modifies the specified transit gateway. When you modify a transit gateway, the modified options are applied to
new transit gateway attachments only. Your existing transit gateway attachments are not modified.
</p>

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