import { OnModuleInit } from '@nestjs/common';
import { Model } from 'mongoose';
import { ConfigDocument } from '../app-config/config/config.model';
export declare class MigrationService implements OnModuleInit {
    private configModel;
    private readonly logger;
    private readonly CURRENT_VERSION;
    private readonly VERSION_KEY;
    constructor(configModel: Model<ConfigDocument>);
    onModuleInit(): Promise<void>;
    private getDbVersion;
    private setDbVersion;
    private runMigrations;
    private getMigrationsToRun;
}