/**
 * Argument shape — narrowed to just what the key derivation needs so the
 * helper can be called with a partial `TokenBalance` or with a raw
 * `{ address, isNative }` pair from any consumer.
 */
export type BuildTokenKeyArgs = {
    address?: string;
    isNative?: boolean;
};
/**
 * Per-token idempotency key used by `useAleoAutoShieldSponsoredTokens`
 * to dedup auto-shield candidates and by consumers (e.g.
 * `ActiveWalletBalance`) to read back which tokens are currently
 * mid-broadcast via `currentlyShieldingTokenKeys`. Returns an empty
 * string when neither an address nor the native flag is set so callers
 * can treat the token as "no usable key" and skip it.
 */
export declare const buildTokenKey: (token: BuildTokenKeyArgs) => string;