Fill in the missing line to make a reference to the ID of the declared TextView in Kotlin code like this: R.id.thisTextViewId
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent">
<TextView
________________________
tools:text="I'm a TextView"
android:textSize="32sp"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_margin="8dp"
android:gravity="center"/>
</LinearLayout>