import { DataSource, EntityManager, EntityTarget, ObjectLiteral, QueryRunner, Repository } from 'typeorm';
export declare class DataSourceContext {
    static put<R>(source: DataSource, callback: () => R): void;
    protected static current(): DataSource;
    static startTransaction<T>(callback: (transaction: DBTransaction) => Promise<T>): Promise<T>;
    static startTransactionToQueryRunner<T>(queryRunner: QueryRunner, callback: (transaction: DBTransaction) => Promise<T>): Promise<T>;
}
export declare class DBTransaction {
    private queryRunner;
    private manager;
    constructor(queryRunner: QueryRunner, manager: EntityManager);
    rollback(): Promise<void>;
    commit(): Promise<void>;
    getRepository<Entity extends ObjectLiteral>(target: EntityTarget<Entity>): Repository<Entity>;
}