how to use RecyclerAdapter for https://medium.com/@tonny/recyclerview-2020-when-recyclerview-meets-data-binding-616ca5c2147d

MainFragment.kt

class MainFragment: 
  Fragment(R.layout.fragment_main) {
    
    private val adapter by lazy {
      
      RecyclerAdapter(
        RecyclerItem.diffCallback<User>(),
        R.layout.list_item_user_placeholder
      ) { _, _, item ->
         
         val action = getNavigationUIAction(item.id)
         findNavController().navigate(action)
      }
    }

  //...
  
  viewModel.data.observe(
    this.viewLifecycleOwner, Observer {
      adapter.submitList(it)
  })