import { DownloadParam, OsSocketEmitter } from '../types';
export declare class MetroOSHelper {
    static findOsOpenApi: <T>(global: any, findName: string) => T | null;
    static getOsSocketInstance: () => OsSocketEmitter | undefined;
    static download: (option: DownloadParam) => void;
    static isOsEnv(): any;
}