import { HttpClient } from 'effect/http';
import { HttpApi, type HttpApiGroup } from 'effect/http-api';
export interface EffectCrossProjectClientOptions {
    requestId: string;
    operationVersion: number;
    /** Server mount path, independent of the API origin. */
    prefix: string;
}
/** Native transport middleware; endpoint encoding and inference stay in Effect. */
export declare function withCrossProjectPolicy<Id extends string, Groups extends HttpApiGroup.Constraint>(api: HttpApi.HttpApi<Id, Groups>, options: EffectCrossProjectClientOptions, client: HttpClient.HttpClient): HttpClient.HttpClient;