in build-android-start/app/src/main/java/com/google/firebase/codelab/friendlychat/FriendlyMessageAdapter.kt [56:62]
override fun onBindViewHolder(holder: ViewHolder, position: Int, model: FriendlyMessage) {
if (options.snapshots[position].text != null) {
(holder as MessageViewHolder).bind(model)
} else {
(holder as ImageMessageViewHolder).bind(model)
}
}