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<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:binding="http://www.gueei.com/android-binding/"
    android:layout_width="match_parent"
    android:layout_height="match_parent" >

    <TextView
        android:id="@+id/textView1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        binding:text="message"
        />

    <Button
        android:id="@+id/button1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Button" 
        binding:onClick="hello"
        />

</RelativeLayout>