Extension to add a CompositeLifecycleOwner property to a ViewModel

LifecycleViewModel.kt

package androidx.lifecycle

import be.digitalia.utils.CompositeLifecycleOwner

private const val VIEW_LIFECYCLE_KEY = "androidx.lifecycle.VIEW_LIFECYCLE"

val ViewModel.lifecycleOwner: CompositeLifecycleOwner
    get() {
        return getTag(VIEW_LIFECYCLE_KEY)
                ?: setTagIfAbsent(VIEW_LIFECYCLE_KEY, CompositeLifecycleOwner())
    }