/**
 * Enhanced Token Manager with Circuit Breaker Protection
 */
import { TokenManager, TokenManagerConfig } from './TokenManager';
import { CircuitState } from '../utils/CircuitBreaker';
export interface EnhancedTokenManagerConfig extends TokenManagerConfig {
    circuitBreaker?: {
        failureThreshold?: number;
        successThreshold?: number;
        timeout?: number;
        monitoringWindow?: number;
    };
}
/**
 * Token Manager with built-in circuit breaker for resilient token operations
 */
export declare class TokenManagerWithCircuitBreaker extends TokenManager {
    private readonly circuitBreaker;
    constructor(config: EnhancedTokenManagerConfig);
    /**
     * Get token with circuit breaker protection
     */
    getToken(): Promise<string>;
    /**
     * Fetch token with circuit breaker protection
     */
    fetchToken(): Promise<void>;
    /**
     * Refresh token with circuit breaker protection
     */
    refreshToken(): Promise<void>;
    /**
     * Get circuit breaker state
     */
    getCircuitBreakerState(): CircuitState;
    /**
     * Get circuit breaker metrics
     */
    getCircuitBreakerMetrics(): any;
    /**
     * Check if token operations are available (not blocked by circuit breaker)
     */
    isTokenOperationAvailable(): boolean;
    /**
     * Manually reset circuit breaker (for recovery scenarios)
     */
    resetCircuitBreaker(): void;
    /**
     * Override destroy to cleanup circuit breaker
     */
    destroy(): void;
}
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