/**
 * [WHO]: MessageScroller, MessageScrollerContent, MessageScrollerButton.
 * [FROM]: React + @/lib/utils.
 * [TO]: sparkdesign package consumers; output of CLI `add message-scroller` when applicable.
 * [HERE]: registry/chat/message-scroller.tsx — scrollable message viewport with optional jump-to-bottom button.
 *
 * [PROTOCOL]:
 * 1. Keep this P3 header in sync when the public contract changes.
 * 2. Update module AGENTS.md (P2) and root AGENTS.md (P1) when boundaries change.
 * 3. Follow design tokens and explicit type exports.
 */
import * as React from 'react';
export interface MessageScrollerProps extends React.HTMLAttributes<HTMLDivElement> {
    autoScroll?: boolean;
}
declare const MessageScroller: React.ForwardRefExoticComponent<MessageScrollerProps & React.RefAttributes<HTMLDivElement>>;
export type MessageScrollerContentProps = React.HTMLAttributes<HTMLDivElement>;
declare const MessageScrollerContent: React.ForwardRefExoticComponent<MessageScrollerContentProps & React.RefAttributes<HTMLDivElement>>;
export type MessageScrollerButtonProps = React.ButtonHTMLAttributes<HTMLButtonElement>;
declare const MessageScrollerButton: React.ForwardRefExoticComponent<MessageScrollerButtonProps & React.RefAttributes<HTMLButtonElement>>;
export { MessageScroller, MessageScrollerContent, MessageScrollerButton };