What is the typealias in Android Studio project?

The code A comes from the project.

1: What is the typealias in Android Studio project?

2: Is the typealias keyword of Kotlin?

3: Is there a equivalent code as same as typealias OnExploreItemClicked = (ExploreModel) -> Unit ?

4: Why is the code typealias OnExploreItemClicked = {(ExploreModel) -> Unit } wrong?

Code A

typealias OnExploreItemClicked = (ExploreModel) -> Unit

@Composable
fun CraneHome(
    onExploreItemClicked: OnExploreItemClicked,
    modifier: Modifier = Modifier,
) {
     ...
}

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