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<?xml version="1.0" encoding="utf-8"?>
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<selector
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xmlns:android="http://schemas.android.com/apk/res/android">
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<item android:state_checked="true" android:drawable="@drawable/mtrl_ic_arrow_drop_up" />
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<item android:drawable="@drawable/mtrl_ic_arrow_drop_down" />
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</selector> |