/**
 * Whether an sdk-shopify event starts a sync: the cart page coming into view (sdk-shopify 0.14's
 * `cart:viewed`, from `useCartPage().viewed()`), unless `syncOnCartView` is false. Another device may
 * have changed the shared cart, so each visit checks (production's, kept by amore-v2's Cart until 0.7.0).
 */
export declare function syncsOnShopifyEvent(type: string, options?: {
    syncOnCartView?: boolean;
}): boolean;
/**
 * The cart an sdk-shopify event says was just bought, for Cart Assist to mark checked out: the cart on
 * sdk-shopify 0.15's `checkout:completed` (its checkout page saw the order placed, before the cart was
 * reset). Null for any other event, for a checkout of its own link (an auction's wins: no cart, and the
 * shopper's cart must stay), and when `markOnOrder` is false.
 */
export declare function checkedOutCartIdOf(event: {
    type: string;
    cart?: {
        id?: string | null;
    } | null;
}, options?: {
    markOnOrder?: boolean;
}): string | null;
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