import type { Logger } from '@owox/internal-helpers';
import type { Request as ExpressRequest } from 'express';
/**
 * Converts Express request headers into a Fetch API Headers object.
 */
export declare function convertExpressHeaders(req: ExpressRequest): Headers;
/**
 * Converts an Express request into a Fetch API Request.
 */
export declare function convertExpressToFetchRequest(req: ExpressRequest, logger?: Logger): globalThis.Request;
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