import * as opentelemetry from "@opentelemetry/api";
import type { IncomingHttpHeaders } from "http";
export type LangfuseContextProps = {
    headers?: IncomingHttpHeaders;
    userId?: string;
    projectId?: string;
};
/**
 * Returns a new context containing baggage entries composed from
 * the supplied props (headers, userId, projectId). Existing baggage
 * entries are preserved.
 */
export declare const contextWithLangfuseProps: (props: LangfuseContextProps) => opentelemetry.Context;
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