--- #4 POST /quantlib/core/types/money/convert
  Status: 200 OK
  data keys: ['original', 'converted', 'rate']
  data: {"original": {"amount": 100.0, "currency": "USD"}, "converted": {"amount": 92.0, "currency": "EUR"}, "rate": 0.92}

--- #5 POST /quantlib/core/types/rate/convert
  Status: 200 OK
  data keys: ['decimal', 'percentage', 'bps', 'display']
  data: {"decimal": 0.05, "percentage": 5.0, "bps": 500.0, "display": "5.0000%"}

--- #6 GET /quantlib/core/types/spread/from-bps?bps=50
  Status: 405 FAIL
  full_resp: {"detail": "Method Not Allowed"}

--- #7 POST /quantlib/core/types/tenor/add-to-date
  Status: 200 OK
  data keys: ['result_date', 'tenor', 'start_date']
  data: {"result_date": "2024-04-01", "tenor": "3M", "start_date": "2024-01-01"}

--- #8 POST /quantlib/core/types/notional-schedule
  Status: 200 OK
  data keys: ['success', 'message']
  data: {"success": false, "message": "Unknown schedule type: linear"}

--- #10 POST /quantlib/core/conventions/format-date
  Status: 200 OK
  data keys: ['formatted']
  data: {"formatted": "2024-01-15"}

--- #11 POST /quantlib/core/conventions/days-to-years
  Status: 200 OK
  data keys: ['years']
  data: {"years": 0.999315537303217}

--- #12 POST /quantlib/core/conventions/years-to-days
  Status: 200 OK
  data keys: ['days']
  data: {"days": 365}

--- #13 POST /quantlib/core/conventions/normalize-rate
  Status: 200 OK
  data keys: ['normalized']
  data: {"normalized": 0.05}

--- #14 POST /quantlib/core/conventions/normalize-volatility
  Status: 200 OK
  data keys: ['normalized']
  data: {"normalized": 0.2}

--- #15 POST /quantlib/core/autodiff/dual-eval
  Status: 200 OK
  data keys: ['x', 'f_x', 'f_prime_x', 'function']
  data: {"x": 1.0, "f_x": 0.8414709848078965, "f_prime_x": 0.5403023058681398, "function": "sin"}

--- #16 POST /quantlib/core/autodiff/gradient
  Status: 422 FAIL
  full_resp: {"success": false, "message": "body -> x: Input should be a valid list", "error_code": "VALIDATION_ERROR"}

--- #17 POST /quantlib/core/autodiff/taylor-expand
  Status: 422 FAIL
  full_resp: {"success": false, "message": "body -> x0: Field required", "error_code": "VALIDATION_ERROR"}