import type { IotasLogger } from '../logger.js';
import type { IotasTokens } from '../types.js';
export interface IotasSessionOptions {
    log: IotasLogger;
    email: string;
    authenticate: () => Promise<{
        username: string;
        password: string;
    }>;
    onTokensChanged?: (tokens: IotasTokens) => void;
    initialTokens?: IotasTokens;
    baseUrl?: string;
    authRetryDelaysMs?: number[];
    /** Injected fetch function for testing. Default: globalThis.fetch */
    fetch?: typeof fetch;
    /** Injected delay function for testing. Default: setTimeout-based sleep */
    delay?: (ms: number) => Promise<void>;
}
/**
 * Manages authentication and token lifecycle for the IOTAS API.
 *
 * Handles initial auth, token refresh, JWT expiry checks,
 * retry with backoff, and request deduplication.
 */
export declare class IotasSession {
    private token;
    private refreshToken;
    private authenticateRequest;
    private readonly log;
    private readonly email;
    private readonly authenticateFn;
    private readonly onTokensChanged?;
    private readonly baseUrl;
    private readonly authRetryDelaysMs;
    private readonly fetch;
    private readonly delay;
    constructor(options: IotasSessionOptions);
    getToken(): Promise<string>;
    invalidateToken(): void;
    private authenticate;
    private authenticateWithRetry;
    private refreshAccessToken;
}