nowjs-core/lib/data/db/IDbMigration.d.ts

NowCanDo Javascript Core [nowjs-core] is a library written by TypeScript code maintains under Apache 2.0 licence

export declare abstract class IDbMigration<T, TResult> {
    abstract up(db: T): Promise<TResult>;
    abstract down(db: T): Promise<TResult>;
    abstract seed(db: T): Promise<TResult>;
    abstract log(opname: string, opdata: any): void;
}