import type { VercelKV } from '@vercel/kv';
export type CommentData = {
    publicKey: string;
    data: string;
    postId: string | number;
};
export declare function getVercelComment(appId: string, postId: string | number, commentId: string | number, client: VercelKV): Promise<CommentData>;
export declare function setVercelComment(appId: string, post: CommentData, client: VercelKV): Promise<number>;
export declare function getVercelPostComments(appId: string, postId: string | number, client: VercelKV): Promise<CommentData[]>;
export declare function getVercelCommentsPostLength(appId: string, postId: string | number, client: VercelKV): Promise<number>;