export declare class Install {
    pkg: string;
    installVersion: string;
    checkoutVersion: string;
    attributes: InstallAttribute;
    constructor(pkg: string, iVersion: string, cVersion: string, attributes: InstallAttribute);
    static from(obj: any): Install;
    static query(pkg: string, iversion: string): {
        pkg: string;
        installVersion: string;
    };
}
export declare class InstallAttribute {
    upgradeTime: number | undefined;
    createTime: number | undefined;
    constructor(obj?: any);
    static from(obj: any): InstallAttribute;
}