import type { SubstrateEvent } from "../../events/types.js";
import type { SubscriptionRecord } from "./subscription_types.js";
export declare function isWebhookUrlAllowed(urlStr: string): boolean;
export declare function stableStringify(obj: unknown): string;
export declare function signWebhookBody(secret: string, body: string): string;
export declare function queueWebhookDelivery(sub: SubscriptionRecord, event: SubstrateEvent): void;
//# sourceMappingURL=webhook_delivery.d.ts.map