import { EventEmitter } from 'events';
interface Package {
    name: string;
    version: string;
    dependencies?: Record<string, string>;
    devDependencies?: Record<string, string>;
    peerDependencies?: Record<string, string>;
    platform?: string[];
    arch?: string[];
    language?: string;
    binary?: boolean;
}
interface Environment {
    name: string;
    path: string;
    packages: Map<string, InstalledPackage>;
    language: string[];
    created: Date;
    lastModified: Date;
}
interface InstalledPackage extends Package {
    installedVersion: string;
    installedPath: string;
    installedDate: Date;
    size: number;
    files: string[];
}
declare class EnvironmentManager {
    private baseDir;
    environments: Map<string, Environment>;
    constructor(baseDir: string);
    createEnvironment(name: string, languages?: string[]): Promise<Environment>;
    private initializeLanguageEnv;
    activateEnvironment(name: string): Promise<void>;
}
export declare class UniversalPackageManager extends EventEmitter {
    envManager: EnvironmentManager;
    private resolver;
    private cacheManager;
    private registryManager;
    private config;
    constructor(config: UPMConfig);
    install(packages: string[] | Record<string, string>, options?: InstallOptions): Promise<void>;
    private parsePackageSpecs;
    private downloadPackage;
    private installPackage;
    private installJavaScriptPackage;
    private installPythonPackage;
    private updateLockFile;
    private parallelLimit;
}
export interface UPMConfig {
    baseDir: string;
    cacheDir: string;
    registries?: Record<string, string>;
    offline?: boolean;
}
export interface InstallOptions {
    environment?: string;
    global?: boolean;
    dev?: boolean;
    noCache?: boolean;
    parallel?: number;
    platform?: string;
    arch?: string;
}
export declare class UPMCli {
    private upm;
    constructor(config: UPMConfig);
    private setupEventHandlers;
    run(args: string[]): Promise<void>;
    private handleEnvCommand;
    private initProject;
}
export default UniversalPackageManager;
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