export type ScrollTopChange = Readonly<{
    changed: boolean;
    dirty: boolean;
    top: number;
}>;
export type ActiveChange = Readonly<{
    changedActive: boolean;
    changedScroll: boolean;
    dirty: boolean;
    next: number;
}>;
export type SyncModelResult = Readonly<{
    canceledPendingWheel: boolean;
    reattached: boolean;
    changedActive: boolean;
    changedScroll: boolean;
    dirty: boolean;
}>;
export declare function getWheelScrollInput(e: {
    deltaY?: number;
    deltaMode?: number;
}): {
    deltaY: number;
    mode: "auto" | "line" | "pixel";
};