/**
 * Track API request
 * @param tool Tool name
 * @param responseTime Response time in ms
 * @param isSuccess Whether the request was successful
 */
export declare function trackToolRequest(tool: string, responseTime: number, isSuccess: boolean): void;
/**
 * Track AWS API request
 * @param service AWS service name
 * @param operation Operation name
 * @param responseTime Response time in ms
 * @param isSuccess Whether the request was successful
 */
export declare function trackAwsRequest(service: string, operation: string, responseTime: number, isSuccess: boolean): void;
/**
 * Track HTTP request
 * @param method HTTP method
 * @param path Request path
 * @param statusCode Response status code
 * @param responseTime Response time in ms
 */
export declare function trackHttpRequest(method: string, path: string, statusCode: number, responseTime: number): void;
/**
 * Force flush metrics immediately
 * Useful for graceful shutdown
 */
export declare function flushMetricsNow(): Promise<void>;
/**
 * Check if CloudWatch metrics are enabled
 */
export declare function isMetricsEnabled(): boolean;
/**
 * Get all collected metrics
 * @returns Object containing all metrics
 */
export declare function getAllMetrics(): {
    counters: Record<string, number>;
    gauges: Record<string, number>;
    histograms: Record<string, any>;
};
/**
 * Reset all metrics
 */
export declare function resetMetrics(): void;
/**
 * Middleware for tracking HTTP requests
 */
export declare function createMetricsMiddleware(): (req: any, res: any, next: any) => void;