export type GestureOwner = 'sheet' | 'content';
export interface ScrollBoundaryInput {
    deltaY: number;
    scrollTop: number;
    scrollHeight: number;
    clientHeight: number;
    startedOnHandle: boolean;
}
export declare function decideGestureOwner({ deltaY, scrollTop, scrollHeight, clientHeight, startedOnHandle, }: ScrollBoundaryInput): GestureOwner;
export declare function findScrollableAncestor(target: EventTarget | null, boundary: HTMLElement): HTMLElement | null;