import { type Asset, AssetError, type AssetRef, type Result } from '@forgeax/engine-types';
export declare function assertPrivateMeshStorage(value: unknown, seen?: Set<object>): void;
/** Copy private domain data before exposing it to a mutable consumer. */
export declare function copyPreparedAsset(asset: Asset): Asset;
/** Domain preparation has no Catalog, World or GPU side effects. */
export declare function prepareAssetPayload(asset: Asset): Result<Asset, AssetError>;
/** Validate typed domain edges against the same fixed reference closure for both input forms. */
export declare function validateAssetReferences(asset: Asset, guid: string, refs: readonly AssetRef[], kind: (guid: string) => string | undefined): AssetError | undefined;
//# sourceMappingURL=prepare-payload.d.ts.map