import { ShopifyModuleOptions } from "../types/index.js";
export declare class ModuleService {
    protected static _options: ShopifyModuleOptions;
    static instance?: ModuleService;
    static get options(): ShopifyModuleOptions;
    protected constructor();
    static getSingleton(): ModuleService;
    static setSingleton(options?: ShopifyModuleOptions): ModuleService;
}