title: What is the equivalent value for appbar_scrolling_view_behavior in the material library of androidx?
body: <p>Recently I migrate to <code>anroidx</code>. In the xml layout I use of the <code>NestedScrollView</code>. Before I set <code>@string/appbar_scrolling_view_behavior</code> value for the <code>layout_behavior</code> attribute. Now this value is undefined in the xml file. What is the equivalent value for this property in the material library?
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