export declare class Upgrader {
    private upgraders;
    getUpgradeList(from: string, to: string): SingleUpgrader[];
    registerUpgrader(upgrader: SingleUpgrader): void;
    execute(): Promise<void>;
}
export declare function checkVersion(): boolean;
export declare function splitVersion(version: string): [number, number, number];
export declare function compareVersion(versionA: string, versionB: string): number;
export interface SingleUpgrader {
    version: string;
    execute(): Promise<void>;
}