import { TrackerArgs } from './models.js';

interface TrackerSubscription {
    /** Cancel tracking */
    unsubscribe(): void;
    /** A flag to indicate whether this has already been unsubscribed */
    readonly closed: boolean;
}
/**
 * Track a bridge transaction to completion.
 *
 * The process consists of two steps:
 * - Ensure that the source blockchain has reached the required number of
 * confirmations.
 * - Watch for the new transaction to be created on the target blockchain.
 *
 * During the process `onBridgeTransactionUpdate` will be called when the state
 * of the `bridgeTransaction` changes e.g. `confirmationCount`
 *
 * When the two steps finish `onBridgeTransactionUpdate` will be called a final
 * time with `complete` set to true.
 *
 * @returns a subscription object that can be used to unsubscribe
 * (e.g. when used in a `useEffect` hook)
 */
declare function trackBridgeTransaction(args: TrackerArgs): TrackerSubscription;

export { TrackerSubscription, trackBridgeTransaction };