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

[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.

## sources {#sources}

```ts
sources: Map<EntityId, LineToolState | null> | null;
```

Use the type signature above and the integration guide for the owning capability.

## groups {#groups}

```ts
groups: Map<string, LineToolsGroupState | null>;
```

Use the type signature above and the integration guide for the owning capability.

## symbol {#symbol}

```ts
symbol?: string;
```

Use the type signature above and the integration guide for the owning capability.

## Related types

- [EntityId](https://docs.lumencharts.com/charting-library/api/EntityId)
- [LineToolState](https://docs.lumencharts.com/charting-library/api/LineToolState)
- [LineToolsGroupState](https://docs.lumencharts.com/charting-library/api/LineToolsGroupState)

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