import type { IDataObject } from 'n8n-workflow';
export declare const TWENTY_WEBHOOK_TOLERANCE_MS: number;
export declare class TwentyWebhookError extends Error {
    constructor(message: string);
}
export interface TwentyWebhookEvent {
    payload: IDataObject;
    event: 'created' | 'updated' | 'deleted';
    objectApiName: string;
}
export declare function verifyTwentyWebhook(rawBody: Buffer | string | undefined, headers: Record<string, string | string[] | undefined>, secret: string, now?: number): void;
export declare function parseTwentyWebhookEvent(value: unknown): TwentyWebhookEvent;