export interface Comment {
    id: string;
    content: string;
    createdAt: number;
    updatedAt: number;
}
export declare class CommentManager {
    private comments;
    createComment(content: string): Comment;
    getComment(id: string): Comment | undefined;
    updateComment(id: string, content: string): void;
    deleteComment(id: string): void;
    getAllComments(): Comment[];
}