export type ChatScrollDirection = 'up' | 'down';
export type ChatScrollIntentEvent = {
    direction: ChatScrollDirection | null;
};
export type ChatScrollIntentOptions = {
    timeoutMs?: number;
    onIntentStart?: () => void;
    onIntentEnd?: () => void;
};
export declare class ChatScrollIntent {
    #private;
    constructor(options?: ChatScrollIntentOptions);
    get isActive(): boolean;
    mark(): void;
    destroy(): void;
}
export declare const isScrollIntentKey: (key: string) => boolean;
export declare const getWheelScrollDirection: (event: WheelEvent) => ChatScrollDirection | null;
export declare const getTouchScrollDirection: (previousClientY: number | null, event: TouchEvent) => ChatScrollDirection | null;
export declare const getKeyScrollDirection: (event: KeyboardEvent) => ChatScrollDirection | null;
export declare const trackScrollIntent: (node: HTMLElement, onIntent: (_event: ChatScrollIntentEvent) => void) => {
    destroy(): void;
};