In the docs, it says that:

To create a target group manually, call

createTargetGroup

on the load balancer, or allocate a

NetworkTargetGroup

or

ApplicationTargetGroup

by hand. When doing so, the following additional options are available:

However, the ALB instance created from

awsx.lb.ApplicationLoadBalancer

does not have the

createTargetGroup

function. How should I manually create the target group for an ALB?