To attach an Application Load Balancer, Network Load Balancer, or Gateway Load Balancer, use the attach_load_balancer_target_groups API operation instead.
See https://paws-r.github.io/docs/autoscaling/attach_load_balancers.html for full documentation.
autoscaling_attach_load_balancers(AutoScalingGroupName, LoadBalancerNames)[required] The name of the Auto Scaling group.
[required] The names of the load balancers. You can specify up to 10 load balancers.