import type { AjaxApiClient } from "../ajax-api/ajax-api-client";
import type { EventBus } from "../events/event-bus";
import type { StorefrontContext } from "../options/types";
import type { SwishApi } from "../swish-api/swish-api-client";
export declare const CHECKOUT_BRIDGE_KEY = "_swish";
export interface CheckoutBridgeDeps {
    api: SwishApi;
    ajax: AjaxApiClient;
    events: EventBus;
    context: StorefrontContext;
    preRelease: boolean;
}
export declare class CheckoutBridge {
    private readonly api;
    private readonly ajax;
    private readonly events;
    private readonly context;
    private readonly preRelease;
    constructor(deps: CheckoutBridgeDeps);
    listen(): void;
    sync(): Promise<void>;
    private composeValue;
    private write;
}