import { Context, Span, Baggage } from '@opentelemetry/api';
import type { Request, Response, NextFunction } from 'express';
import type { TelemetryConfig } from './config.js';
export interface EnhancedContext {
    requestId: string;
    userId?: string;
    sessionId?: string;
    span?: Span;
    baggage?: Baggage;
    attributes?: Record<string, string | number | boolean>;
}
export declare function getCurrentContext(): EnhancedContext | undefined;
export declare function runWithContext<T>(context: EnhancedContext, fn: () => T): T;
export declare function extractContextFromHeaders(headers: Record<string, string | string[] | undefined>): Context;
export declare function injectContextToHeaders(context: Context, headers: Record<string, string>): void;
export declare function contextPropagationMiddleware(config: TelemetryConfig): (req: Request, res: Response, next: NextFunction) => void;
export declare function wrapWithContext<T extends (...args: any[]) => Promise<any>>(fn: T, spanName?: string): T;
export declare function createChildSpan(name: string, attributes?: Record<string, any>): Span | undefined;
export declare function addSpanAttributes(attributes: Record<string, any>): void;
export declare function addSpanEvent(name: string, attributes?: Record<string, any>): void;
export declare function setSpanStatus(code: trace.SpanStatusCode, message?: string): void;
export declare function getTraceId(): string | undefined;
export declare function getSpanId(): string | undefined;
export declare function getCorrelationIds(): {
    traceId?: string;
    spanId?: string;
    requestId?: string;
};
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