import type { ApolloLink } from '@apollo/client/core';
import { InMemoryCache } from '@apollo/client/core';
import { HttpLink } from 'apollo-angular/http';
import { NgGqlConfig } from './ng-gql-config';
import { NgGqlUserService } from '../services';
export declare function httpLinkFactory(httpLink: HttpLink, document: Document, config: NgGqlConfig, userService: NgGqlUserService): {
    link: ApolloLink;
    cache: InMemoryCache;
};