AS-382, AS-404: Getting load balancers in structured form

Getting load balancer nodes and time they were drained from feeds using effect.
Yeah. We all agree that decorator style `add_retries` function will be useful in pure_http but I am not sure where it should be composed? Is it inside this function or outside with caller? I feel inside this function would be correct place since it knows the requests it is making and depending on how upstream systems behave the retry configuration can be different. However, that makes testing a little more complicated.