/**
 * @module
 * Koa middleware for auto-api-observe. Use `koaObservability` as Koa middleware
 * for zero-config request tracing on Koa v2+ applications.
 */
import { ObservabilityOptions } from '../types';
type KoaContext = {
    method: string;
    path: string;
    url: string;
    status: number;
    request: {
        headers: Record<string, string | string[] | undefined>;
        ip?: string;
    };
    set: (header: string, value: string) => void;
};
type KoaNext = () => Promise<void>;
export declare function koaObservability(options?: ObservabilityOptions): (ctx: KoaContext, next: KoaNext) => Promise<void>;
export {};
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