import algosdk from 'algosdk';
/**
 * Construct the box key for an asset.
 * Prefix 'a' + 8-byte asset ID
 */
export declare function getBoxKeyForAsset(assetId: number): Uint8Array;
/**
 * Construct the user deposit/freeze box key.
 * 8-byte asset ID + 32-byte user address
 */
export declare function getUserAssetBoxKey(assetId: number, address: string): Uint8Array;
export declare function getExemptWalletBoxKey(prefix: 'g' | 'r', address: string | algosdk.Address, algodClient?: algosdk.Algodv2): Promise<Uint8Array>;