import { StoredToken } from '../types';
/**
 * TokenManager handles storing, retrieving, and refreshing tokens.
 * Supports both in-memory storage and custom storage implementations.
 */
export declare class TokenManager {
    private tokens;
    private storageKey;
    /**
     * Initialize TokenManager with optional persisted tokens
     * @param persistedTokens - Previously stored tokens to restore
     */
    constructor(persistedTokens?: Record<string, StoredToken>);
    /**
     * Store a token
     * @param key - Identifier for the token (e.g., username or 'default')
     * @param token - Token data to store
     */
    setToken(key: string, token: StoredToken): void;
    /**
     * Retrieve a stored token
     * @param key - Identifier for the token
     * @returns Stored token or undefined if not found
     */
    getToken(key: string): StoredToken | undefined;
    /**
     * Get a valid access token, returns null if expired or not found
     * @param key - Identifier for the token
     * @returns Access token string or null if not valid
     */
    getValidAccessToken(key: string): string | null;
    /**
     * Check if a refresh token is available and valid
     * @param key - Identifier for the token
     * @returns true if refresh token exists and is not expired
     */
    hasValidRefreshToken(key: string): boolean;
    /**
     * Get refresh token
     * @param key - Identifier for the token
     * @returns Refresh token string or null if not available
     */
    getRefreshToken(key: string): string | null;
    /**
     * Clear all stored tokens
     */
    clear(): void;
    /**
     * Clear a specific token
     * @param key - Identifier for the token
     */
    clearToken(key: string): void;
    /**
     * Get all stored tokens for export/persistence
     * @returns Object with all stored tokens
     */
    exportTokens(): Record<string, StoredToken>;
}
//# sourceMappingURL=token-manager.d.ts.map