retries: 3
  attempt 0: 500
  (it would have waited 1 seconds)
  attempt 1: 503, and it asks for five seconds
  (it would have waited 5 seconds)
  attempt 2: 200
it got there: Does it use wings to fly?

  attempt 0: 500
retries 0: llm: request failed (HTTP 500) after 0 retries
