Kotlin: How can I get a selected list ID?

Question

i want to open all details list that has been selected.

I have two entities : Tag and TagList. Each TagList has a list of tags. So I added a foreign key on entity Tag 'id_tag_list'.

Here's some images of my app :

OpenFragment

I select a list then I clicked on Open which navigates to OpenFragment which display my corresponding list of tags.

I tried this :

ListsFragment :

binding.btnOpen.setOnClickListener {
            val direction = ListsFragmentDirections.actionListsFragmentToOpenFragment()
            findNavController().navigate(direction)
        }

**I created an interface in order to take a TagList : **

interface OnItemSelectedListener<T> {

    fun onItemSelected(item: T?)
}

**So ListFragment and ListViewMOdel : **

override fun onItemSelected(item: TagList?) {
        viewModel.selected = item
    }

class TagListViewModel(private val repository: TagRepository) : ViewModel() {

    private val _tagsLists = MutableLiveData<MutableList<TagList>>()
    val tagsLists: LiveData<MutableList<TagList>> = _tagsLists

    val count = Transformations.map(tagsLists) { it.size }

    var selected: TagList? = null

**By the variable 'selected' i can get a TagList but the problem is it obviously doesn't exist on OpenFragment

ReadViewModel **

private val _tags = MutableLiveData<List<Tag>>()
    val tags: LiveData<List<Tag>> = _tags

    val count = Transformations.map(tags) { it.size }

    fun getTags(){
        CoroutineScope(Dispatchers.IO).launch {
            val tags = repository.getTagsOfList(idList = 11)
            _tags.postValue(tags)
        }
    }

OpenFragment

class OpenFragment(private val viewModel: ReadViewModel) : Fragment(), OnItemSelectedListener<Tag> {
override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
        super.onViewCreated(view, savedInstanceState)

        viewModel.getTags()

**I put 11 then it obviously display a list of tags with id_tag_list = 11 but not the list which has been selected.

So how can I replace 11 by the current list selected ? **

EDIT: I already tried selected.id.let{} on TagListViewModel but it display nothing because we select nothing on OpenFragment