Android Studio: Resolving PreferenceFragment is deprecated warning

I encountered the following warning message in Android Studio while converting some Android Java code to Kotlin:
'PreferenceFragment' is deprecated. Deprecated in Java

Some digging through the Android documentation resulted in a solution; the android.preference.PreferenceFragment class is being deprecated and can be replaced with the new Jetpack androidx preference classes. So I needed to do the following:

1. Add a new dependency to the new Androidx preference library in the app's build.gradle file
   
   implementation "androidx.preference:preference:1.0.0"
   
2. In the Kotlin source code, remove the following namespace import statement:
   
   import android.preference.PreferenceFragment
   
3. Insert the following namespace import statement:
   
   import androidx.preference.PreferenceFragmentCompat
   
4. Then override the abstract onCreatePreferences method.
   

override fun onCreatePreferences(savedInstanceState: Bundle?, rootKey: String?) {
//        TODO("not implemented") //To change body of created functions use File | Settings | File Templates.
    }