Adds one or more subnets to the set of configured subnets for the specified load balancer.
See https://paws-r.github.io/docs/elb/attach_load_balancer_to_subnets.html for full documentation.
elb_attach_load_balancer_to_subnets(LoadBalancerName, Subnets)
[required] The name of the load balancer.
[required] The IDs of the subnets to add. You can add only one subnet per Availability Zone.