import { Transform, SubschemaConfig } from '@graphql-tools/delegate';
import { Request, Response } from 'express';
import { HeadersInit } from 'node-fetch';
export declare function createGraphqlServer({ extensions }: {
    extensions: Promise<SubschemaConfig>[];
}): Promise<(request: Request, response: Response) => Promise<void>>;
export declare function createExtension({ endpoint, getHeaders, prefix, transforms, skipValidation }: {
    endpoint: string;
    getHeaders: (req: Request) => HeadersInit;
    prefix: string | null;
    transforms?: Transform[];
    skipValidation?: boolean;
}): Promise<SubschemaConfig>;
export declare const storeapiExtension: ({ endpoint, prefix, token, shopid, getHeaders }: {
    endpoint?: string;
    prefix?: string | null;
    token: string;
    shopid: string;
    getHeaders?: (req: Request) => HeadersInit;
}) => Promise<SubschemaConfig>;