import type Stripe from 'stripe';
type NarrowedStripeError<T extends Stripe.errors.StripeError['type']> = Stripe.errors.StripeError & {
    type: T;
};
/**
 * Type predicate to check if an unknown value is a Stripe Event.
 */
export declare function isStripeEvent(event: unknown): event is Stripe.Event;
/**
 * Returns the error if it matches or throw it.
 */
export declare function checkStripeError<T extends Stripe.errors.StripeError['type']>(err: unknown, type: T): NarrowedStripeError<T>;
export declare function assertStripeEvent(body: unknown): asserts body is Stripe.Event;
export {};