/// <reference types="node" />
import ApolloClient from 'apollo-client';
import { IncomingHttpHeaders } from 'http';
import { NextContext } from 'next';
import { NextAppContext } from 'next/app';
import { DefaultQuery } from 'next/router';
declare global {
    namespace NodeJS {
        interface Process {
            browser?: boolean;
        }
    }
}
export interface WithApolloOptions {
    getDataFromTree?: 'always' | 'never' | 'ssr';
}
export interface WithApolloState<TCache> {
    data?: TCache;
}
export interface WithApolloProps<TCache> {
    apolloState: WithApolloState<TCache>;
}
export interface InitApolloOptions<TCache> {
    ctx?: NextContext<DefaultQuery>;
    headers?: IncomingHttpHeaders;
    initialState?: TCache;
}
export declare type InitApolloClient<TCache> = ((options: InitApolloOptions<TCache>) => ApolloClient<TCache>);
export interface AppContext<Q extends DefaultQuery = DefaultQuery> extends NextContext<Q> {
    apolloClient: ApolloClient<any>;
}
export interface ApolloContext<Q extends DefaultQuery = DefaultQuery> extends NextAppContext<Q> {
    ctx: AppContext<Q>;
}