import type { PortalRequestStatus } from './portalRequestsStore.js';
export type PortalRequestSyncUpdate = {
    requestId: string;
    status: PortalRequestStatus;
    hostDisplayName?: string;
    sessionCode?: string;
    eventName: string;
    action?: string;
    sourceUrl?: string;
};
export declare function verifyGitHubWebhookSignature(rawBody: Buffer, signatureHeader: string | undefined, secret: string): boolean;
export declare function extractPortalRequestSyncUpdate(eventName: string, payload: unknown): PortalRequestSyncUpdate | null;