Interface
Common
```kotlin
interface LookaheadScope
```
`LookaheadScope` provides a receiver scope for all (direct and indirect) child layouts in
`LookaheadScope`. This receiver scope allows access to `lookaheadScopeCoordinates` from any
child's `Placeable.PlacementScope`. It also allows any child to convert `LayoutCoordinates`
(which can be retrieved in `Placeable.PlacementScope`) to `LayoutCoordinates` in lookahead
coordinate space using `toLookaheadCoordinates`.
## Properties
Common
```kotlin
val Placeable.PlacementScope.lookaheadScopeCoordinates: LayoutCoordinates
```
Returns the `LayoutCoordinates` of the `LookaheadScope`. This is only accessible from
`Placeable.PlacementScope` (i.e. during placement time).
Note: The returned coordinates is **not** coordinates in the lookahead coordinate space. If
the lookahead coordinates of the lookaheadScope is needed, suggest converting the returned
coordinates using `toLookaheadCoordinates`.
## Functions
toLookaheadCoordinates
```kotlin
fun LayoutCoordinates.toLookaheadCoordinates(): LayoutCoordinates
```
Converts a `LayoutCoordinates` into a `LayoutCoordinates` in the Lookahead coordinate space.
This can be used for layouts within `LookaheadScope`.
localLookaheadPositionOf
```kotlin
fun LayoutCoordinates.localLookaheadPositionOf(
sourceCoordinates: LayoutCoordinates,
relativeToSource: Offset = Offset.Zero,
includeMotionFrameOfReference: Boolean = true,
): Offset
```
Converts `relativeToSource` in `sourceCoordinates`'s lookahead coordinate space into local
lookahead coordinates. This is a convenient method for 1) converting both `this` coordinates
and `sourceCoordinates` into lookahead space coordinates using `toLookaheadCoordinates`,
and 2) invoking `LayoutCoordinates.localPositionOf` with the converted coordinates.
For layouts where `LayoutCoordinates.introducesMotionFrameOfReference` returns `true` (placed
under `Placeable.PlacementScope.withMotionFrameOfReferencePlacement`) you may pass
`includeMotionFrameOfReference` as `false` to get their position while excluding the
additional Offset.