import { OnModuleInit } from '@nestjs/common';
import { DiscoveryService } from '@nestjs/core';
import { DataSource } from 'typeorm';
import { TransactionModuleOption } from '../interfaces/transaction-module-option.interface';
export declare class DataSourceMapService implements OnModuleInit {
    private readonly discoveryService;
    private readonly option;
    protected dataSourceMap: Record<string, DataSource | undefined>;
    constructor(discoveryService: DiscoveryService, option: TransactionModuleOption);
    onModuleInit(): void;
    getDataSource(connectionName?: string): DataSource;
}