import { type Address } from 'viem';
export type StoredAuth = {
    token: string;
    expiresAt: number;
};
export declare const getAuthStorageKey: (address: Address, affiliate: Address) => string;
export declare const readAuth: (address: Address, affiliate: Address) => StoredAuth | null;
export declare const writeAuth: (address: Address, affiliate: Address, value: StoredAuth) => void;
export declare const clearAuth: (address: Address, affiliate: Address) => void;