Function roundaboutIdFromLaneKey

roundaboutIdFromLaneKey(laneKey: string): string
Extracts the junction ID from a roundabout lane key.
Parameters
- laneKey: string
  A lane key in the form "lane:roundabout:<UUID>".
Returns string
The UUID portion of the key.
Example
```
roundaboutIdFromLaneKey("lane:roundabout:abc-123") // "abc-123"
```
- Defined in includes/junctionmanagerutils/helpers/roundaboutUtils.ts:30