import type { Checkout } from '../types/Checkout';
/**
 * Initializes a Stripe Checkout Session and returns a reactive handle.
 *
 * The session is fetched from Stripe when the hook mounts. `state` is `null`
 * until the initial load completes, then transitions between `loaded` and
 * `loading` as mutations are performed.
 *
 * Pass the returned `checkout` to `initPaymentSheet` to complete the purchase.
 *
 * @internal
 */
export declare function useCheckout(clientSecret: string, configuration?: Checkout.Configuration): {
    /** The current loading state of the checkout session. `null` until the initial load completes. */
    state: Checkout.State | null;
    /** A handle to the session with methods for mutations. */
    checkout: Checkout;
    /** Set if the initial session load fails. Undefined otherwise. */
    error?: Checkout.Error;
};
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