kotlin フラグメントにメニューをつける

<?xml version="1.0" encoding="utf-8"?>
<menu xmlns:android="http://schemas.android.com/apk/res/android">

    <item
        android:id="@+id/menu1"
        android:title="menu1" />
    <item
        android:id="@+id/menu2"
        android:title="menu2" />
</menu>

package com.example.samplemenuonfragment

import android.os.Bundle
import android.view.*
import android.widget.Toast
import androidx.fragment.app.Fragment
import com.example.samplemenuonfragment.databinding.FragmentBlankBinding

class BlankFragment : Fragment() {
    private var _binding: FragmentBlankBinding? = null
    private val binding get() = _binding!!

    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)

        setHasOptionsMenu(true) // *1
    }

    override fun onCreateView(
        inflater: LayoutInflater, container: ViewGroup?,
        savedInstanceState: Bundle?
    ): View {
        _binding = FragmentBlankBinding.inflate(inflater)
        return binding.root
    }

    override fun onDestroyView() {
        super.onDestroyView()
        _binding = null
    }

    override fun onCreateOptionsMenu(menu: Menu, inflater: MenuInflater) {  // *2
        inflater.inflate(R.menu.menu_fragment1, menu)
        super.onCreateOptionsMenu(menu, inflater)
    }

    override fun onOptionsItemSelected(item: MenuItem): Boolean {   // *3
        return when(item.itemId){
            R.id.menu1 -> {
                binding.txvSample.text = "selected menu1."
                true
            }
            R.id.menu2 -> {
                binding.txvSample.text = "selected menu2."
                true
            }
            else -> {
                super.onOptionsItemSelected(item)
            }
        }
    }
}