/**
 * @see https://developer.android.com/reference/android/widget/LinearLayout#attr_android:gravity
 */
export declare enum BannerAdPosition {
    /**
     * Banner position be top-center
     */
    TOP_CENTER = "TOP_CENTER",
    /**
     * Banner position be center
     */
    CENTER = "CENTER",
    /**
     * Banner position be bottom-center(default)
     */
    BOTTOM_CENTER = "BOTTOM_CENTER"
}