/**
 * npm 版本信息
 */
export interface NpmVersionInfo {
    current: string;
    latest: string;
    needsUpdate: boolean;
}
/**
 * 从 npm registry 获取最新版本
 */
export declare function getLatestVersion(): Promise<string | null>;
/**
 * 检查是否需要更新
 */
export declare function checkForUpdates(): Promise<NpmVersionInfo>;
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