<!-- Public documentation export; not library implementation source. -->
# FieldDescriptor

[Integration guide](https://docs.lumencharts.com/charting-library/reference/compatibility) · [Reference index](https://docs.lumencharts.com/charting-library/api/)

Public contract reference. This declaration describes types and callback shapes; availability is constrained by the linked integration guide and the runtime capability. Legacy product-specific fields are not a promise of implementation.

```ts
export type FieldDescriptor =
  | TimeFieldDescriptor
  | UserTimeFieldDescriptor
  | SeriesFieldDescriptor
  | StudyFieldDescriptor;
```

## Related types

- [TimeFieldDescriptor](https://docs.lumencharts.com/charting-library/api/TimeFieldDescriptor)
- [UserTimeFieldDescriptor](https://docs.lumencharts.com/charting-library/api/UserTimeFieldDescriptor)
- [SeriesFieldDescriptor](https://docs.lumencharts.com/charting-library/api/SeriesFieldDescriptor)
- [StudyFieldDescriptor](https://docs.lumencharts.com/charting-library/api/StudyFieldDescriptor)

---
Documentation page: https://docs.lumencharts.com/charting-library/api/FieldDescriptor