/**
 * Compile-time-only type-accuracy check for SDK 0.53.0's
 * `superpassEmployee` field (SuperPass in-game handoff, API PR #71).
 *
 * Same pattern as types.cms-guide.typecheck.ts: no runtime assertions,
 * never imported by index.ts — `bun:test` won't pick it up (name doesn't
 * match `*.test.ts`) and `bun build` won't bundle it, but
 * `tsc --noEmit` / `tsc --emitDeclarationOnly` fails loudly if the types
 * drift from the wire contract:
 *
 *  - ONE named `SuperpassEmployee` shape is shared by BOTH wire surfaces
 *    (REST order item and SSE order-update item) — the identity pins
 *    below break if either site reverts to a divergent inline literal,
 *    so a single set of exact-shape/negative assertions covers both.
 *  - `OrderItem.superpassEmployee` accepts an assigned-employee object AND
 *    `null` (the serializer always emits one of the two on the customer
 *    order GETs), with `profileUrl: string` — `""` is valid, `null` is not.
 *  - The field stays OPTIONAL on both shapes (omission fixtures below
 *    break if it becomes required — `OrderItem` also serves responses
 *    that never run through serializeCustomerItem).
 *  - The SSE `OrderUpdateEvent` item side is object-or-ABSENT, never null.
 *  - `@ts-expect-error` negatives keep the named shape exact: both keys
 *    required, both `string` (never null), no extra keys leaking in.
 */
import type { OrderItem, SuperpassEmployee } from "./types";
export declare const _typecheckOnly: {
    _restIsShared: SuperpassEmployee;
    _sseIsShared: SuperpassEmployee;
    _sharedToRest: SuperpassEmployee;
    _sharedToSse: SuperpassEmployee;
    _assigned: SuperpassEmployee;
    _unassigned: null;
    _sseItem: {
        productName: string;
        status: string;
        cdKey?: string;
        superpassEmployee?: SuperpassEmployee;
    };
    _itemWithoutEmployee: OrderItem;
    _sseItemWithoutEmployee: {
        productName: string;
        status: string;
        cdKey?: string;
        superpassEmployee?: SuperpassEmployee;
    };
    _missingProfileUrl: SuperpassEmployee;
    _nullUsername: SuperpassEmployee;
    _nullProfileUrl: SuperpassEmployee;
    _sseEmployeeNeverNull: {
        productName: string;
        status: string;
        cdKey?: string;
        superpassEmployee?: SuperpassEmployee;
    };
    _noExtraKeys: SuperpassEmployee;
    _exactShape: {
        username: string;
        profileUrl: string;
    };
};