/** One pending frame per owner; callbacks are replaced by the latest request. */
export declare function createFrameScheduler(): {
    schedule: (callback: FrameRequestCallback) => void;
    cancel: () => void;
};
type PopupElement = Node | {
    $el: Node;
} | null | undefined;
/** Includes composed paths so clicks inside a shadow-root trigger are not treated as outside. */
export declare function isEventOutside(event: Event, elements: PopupElement[], requireAll?: boolean): boolean;
export {};