/**
 * Lambda adapter utilities.
 *
 * Pure functions to convert between AWS API Gateway events and
 * Web Standard Request/Response objects. No framework dependencies.
 */
import type { LambdaEvent, LambdaResult, APIGatewayV2Event } from './types.js';
/** Type guard: true for API Gateway v2 (HTTP API / Function URL) events. */
export declare function isV2Event(event: LambdaEvent): event is APIGatewayV2Event;
/** Extract source IP from a Lambda event (v1 or v2). */
export declare function getSourceIp(event: LambdaEvent): string | undefined;
/** Convert a Lambda event (v1 or v2) to a Web Standard Request. */
export declare function lambdaEventToRequest(event: LambdaEvent, basePath?: string): Request;
/** Convert a Web Standard Response to a Lambda result (v1 or v2 format). */
export declare function responseToLambdaResult(response: Response, event: LambdaEvent): Promise<LambdaResult>;