200 OK — session open
> POST /ai/v1/session {"source": "baliano"}
< 200 OK req_01jmnmsr 53ms POST /ai/v1/search {} Idempotency-Key: zFXw3EEqpfn_ Send ▶> POST /ai/v1/session {"source": "baliano"}
< 200 OK req_01jmnmsr 53ms POST /ai/v1/search {} Idempotency-Key: zFXw3EEqpfn_ Send ▶