modified annotation
@@ -2,9 +2,9 @@ package com.mercadopago.android.px.tracking.internal.model;
import android.support.annotation.Keep;
import android.support.annotation.NonNull;
+import android.support.annotation.Nullable;
import java.math.BigDecimal;
import java.util.List;
-import javax.annotation.Nullable;
@SuppressWarnings("unused")
@Keep
