/// <reference types="zen-observable" />
import type { Operation, NextLink, Observable, FetchResult } from '@apollo/client/core';
import { ApolloLink } from '@apollo/client/core';
import type { LocalSchemaLink } from '@grapes-agency/apollo-link-local-schema';
export interface LocalFederationServiceDefinition {
    name: string;
    link: LocalSchemaLink;
}
interface LocalFederationLinkOptions {
    introspection?: boolean;
    services: Array<LocalFederationServiceDefinition>;
}
export declare class LocalFederationLink extends ApolloLink {
    private services;
    private resolutionStrategies;
    constructor({ services, introspection }: LocalFederationLinkOptions);
    private getResolutionSrategy;
    request(operation: Operation, forward?: NextLink): Observable<FetchResult> | null;
}
export declare const createLocalFederationLink: (options: LocalFederationLinkOptions) => LocalFederationLink;
export {};