Android: Espresso: Child at position

fun childAtPosition(
        parentMatcher: Matcher<View>, position: Int): Matcher<View> {

    return object : TypeSafeMatcher<View>() {
        override fun describeTo(description: Description) {
            description.appendText("Child at position $position in parent ")
            parentMatcher.describeTo(description)
        }

        public override fun matchesSafely(view: View): Boolean {
            val parent = view.parent

            return parent is ViewGroup && parentMatcher.matches(parent)
                    && view == parent.getChildAt(position)
        }
    }
}