/**
 * @module
 * Hono middleware for auto-api-observe. Use `honoObservability` with Hono v3/v4
 * for zero-config request tracing including Edge and Cloudflare Workers.
 */
import { ObservabilityOptions } from '../types';
type HonoContext = {
    req: {
        method: string;
        path: string;
        url: string;
        header: (name: string) => string | undefined;
        raw: {
            headers?: {
                get?: (k: string) => string | null;
            };
        };
    };
    res: Response;
    header: (name: string, value: string) => void;
};
type HonoNext = () => Promise<Response | void>;
export declare function honoObservability(options?: ObservabilityOptions): (c: HonoContext, next: HonoNext) => Promise<Response | void>;
export {};
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