GET /v2/instrument-classes-detailed/:id Fetch one detailed instrument class. Path params: id (required) — Detailed-instrument-class identifier. Response (200 OK): { "data": { "id": "string", "type": "instrument-class-detailed", "attributes": { "name": "string — e.g. Equities - American" }, "relationships": { "instrumentClass": { "data": { "type": "instrument-class", "id": "string" } } } } }