import type { TikTokTokenData } from './types.js';
import { type TikTokBusinessConfig } from './config.js';
declare function expiresAt(seconds: number, now?: number): string;
export declare function configFromToken(app: Pick<TikTokBusinessConfig, 'clientId' | 'clientSecret' | 'redirectUri'>, token: TikTokTokenData, now?: number): TikTokBusinessConfig;
export declare function tokenFreshness(config?: TikTokBusinessConfig | null, now?: number): {
    state: "missing";
    config?: undefined;
    accessMs?: undefined;
    refreshMs?: undefined;
} | {
    state: "refresh_expired";
    config: TikTokBusinessConfig;
    accessMs?: undefined;
    refreshMs?: undefined;
} | {
    state: "access_expired";
    config: TikTokBusinessConfig;
    accessMs: number;
    refreshMs: number;
} | {
    state: "fresh";
    config: TikTokBusinessConfig;
    accessMs: number;
    refreshMs: number;
};
export declare function ensureFreshTikTokConfig(): Promise<TikTokBusinessConfig>;
export declare function hasTikTokScope(config: Pick<TikTokBusinessConfig, 'scope'>, required: string): boolean;
export declare function safeTokenInspection(config: Pick<TikTokBusinessConfig, 'openId' | 'scope'>, tokenInfo: Record<string, unknown>): {
    providerVerified: boolean;
    openIdMatches: boolean | undefined;
    scope: string;
};
export declare function ensureTikTokPublishConfig(): Promise<TikTokBusinessConfig>;
export declare const __testing: {
    expiresAt: typeof expiresAt;
    REFRESH_EARLY_MS: number;
};
export {};