/**
 * This is a manually maintained file that lives alongside the
 * Fern generated code.
 *
 * To make an autogenerated version of this, you'll need to
 * leverage the `x-fern-webhook` extension in your OpenAPI.
 */
import { Event } from "api";
export declare class Webhooks {
    constructEvent({ payload, sigHeader, secret, tolerance, }: {
        payload: unknown;
        sigHeader: string;
        secret: string;
        tolerance?: number;
    }): Promise<Event>;
    verifyHeader({ payload, sigHeader, secret, tolerance, }: {
        payload: any;
        sigHeader: string;
        secret: string;
        tolerance?: number;
    }): boolean;
    getTimestampAndSignatureHash(sigHeader: string): string[];
    computeSignature(timestamp: any, payload: any, secret: string): string;
    secureCompare(stringA: string, stringB: string): boolean;
}