{"demo":true,"note":"Static sample output for illustration; no request was processed and nothing is charged.","request":"GET /v1/bank-days?from=2026-12-23&add=2","price_usd":"0.001","response":{"from":"2026-12-23","add":2,"mode":"bank","result_date":"2026-12-29","from_info":{"date":"2026-12-23","is_business_day":true},"result_info":{"date":"2026-12-29","is_business_day":true}}}