data class NewsData (

    val author: String, val title: String,
    val url: String, val publishedAt: String
)

class NewsViewModel : ViewModel() {

    // The internal MutableLiveData String that stores the most recent response
    private val _response = MutableLiveData<String>()

    // The external immutable LiveData for the response String
    val response: LiveData<String>
        get() = _response

    /**
     * Call getNewsData() on init so we can display status immediately.
     */
    init {
        getNewsData()
    }

    /**
     * Sets the value of the status LiveData to the News API status.
     */
    private fun getNewsData() {

        _response.value = NewsApi.retrofitService.getProperties().enqueue(
            object : Callback<ResponseBody> {
                override fun onFailure(call: Call<ResponseBody>, t: Throwable) {
                    _response.value = "Failure: " + t.message
                    //Log.i("response", t.message)
                }

                override fun onResponse(call: Call<ResponseBody>, response: Response<ResponseBody>) {
                    val root = JSONObject(response.body().toString())
                    val jsonArr = root.getJSONArray("articles")
                    val ob = jsonArr.getJSONObject(0)
                    val name = ob.getString("author")
                    _response.value = name
                }
            }).toString()
    }
}

for (item in statusList) {
            Log.d(TAG, item)
            filteredReport.filter { it.status == item }
        }

transaction.addSharedElement(buttonSignIn, buttonSignIn.transitionName)
        .addSharedElement(socialSigninButtonContainer, socialSigninButtonContainer.transitionName)
        .addSharedElement(signInInputsContainer, signInInputsContainer.transitionName)
        .addSharedElement(textViewCopyright, textViewCopyright.transitionName)

val autoTransition = AutoTransition().also {
    it.interpolator = AccelerateInterpolator()
}
fragment.allowEnterTransitionOverlap = true
fragment.allowReturnTransitionOverlap = true
fragment.sharedElementEnterTransition = autoTransition

override fun onNewIntent(intent: Intent) {
    super.onNewIntent(intent)

    if (currentNavController?.value?.handleDeepLink(intent) == false) {
    ...
    }
}

currentNavController.value

navigation_graph_2.xml

private val _foo: MutableLiveData<List<Foo>> = MutableLiveData()
private val _bar: MutableLiveData<List<Bar>> = MutableLiveData()

val fooBar: LiveData<List<FooBar>> = MediatorLiveData<List<FooBar>>.apply { 
    addSouce(_foo) { this.value = makeFooBarList() }
    addSouce(_bar) { this.value = makeFooBarList() }
}

init {
    loadFoo()
    loadBar()
}