/**
 * Returns `true` when the checkout for `depositAddress` has reached the
 * `COMPLETED` terminal state. Returns `false` while pending / failed /
 * not-yet-loaded / no address.
 *
 * Composes the same hooks the post-checkout detail components use, so the
 * direct-execution path gets its real polling-driven status (the merged
 * list's `state` is hardcoded to `COMPLETED` for DEs — unreliable).
 *
 * `depositAddress` is either a deposit address (bridged checkouts) or a tx
 * hash (direct executions); the underlying hooks pick the right branch.
 */
export declare function useIsCheckoutComplete(depositAddress: string | undefined): boolean;