declare const referenceBrand: unique symbol;
export interface QxObjectRef<Identity extends string = string> {
    readonly [referenceBrand]: {
        readonly [K in Identity]: true;
    };
    equals(other: QxObjectRef<string>): boolean;
}
export declare const isObjectReference: (value: unknown) => value is QxObjectRef;
/** Internal transport boundary; intentionally not exported from the SDK entry. */
export declare const referenceFromWire: (id: string) => QxObjectRef;
export declare const referenceToWire: (value: unknown) => string;
export declare const assertReferenceFree: (value: unknown, seen?: Set<object>) => void;
export {};
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