export declare function formatLocalTimestamp(date: Date): string | null;
export declare function formatHistoryLine(options: {
    date?: Date;
    userName?: string;
    threadTs?: string;
    text: string;
}): string;
export declare function stripHistoryLinePrefix(text: string): string;
export declare function stripTriggerSignature(text: string): string;
//# sourceMappingURL=history-line.d.ts.map