Retrieve Auto Responder References

Returns everywhere an auto responder is used, grouped by kind: funnels that send it, start on engagement with it, or test it in a query or exit condition (usages: send, trigger, condition, exit_condition); segments that send it to subscribers added to them; landing pages that send it as a welcome letter or abandon follow up (usages: welcome_letter, abandon_follow_up); and top-level email messages whose triggered send can pick it. Each kind lists up to 100 references alongside its total.