如果我通过这样的方式设置了片段和视图模型，并从片段中设置了一个动作变量，因此有隐式引用，则视图模型死后会自动清除该引用，并打破潜在的引用周期，或者我应该在viewModel.onCleared()中手动清除它吗？

class MyFragment: BaseFragment() {

    lateinit var viewModel: MyViewModel

    override fun onCreateView(inflater: LayoutInflater,container: ViewGroup?,savedInstanceState: Bundle?): View? {

        return FragmentMyBinding.inflate(inflater,container,false).also { binding ->

            binding.viewModel = ViewModelProviders.of(this).get(MyViewModel::class.java).apply {
                viewModel = this

                showLoader = {
                    // code to display loading spinner
                }
            }

            binding.lifecycleowner = viewLifecycleowner
        }.root
    }

}
...

class MyViewModel: ViewModel() {

    lateinit var showLoader: () -> Unit
...