import { CallHandler, ExecutionContext, NestInterceptor } from '@nestjs/common';
import { DataSource } from 'typeorm';
import { CrudTransactionContextHook } from '../types/crud-transaction-context-hook.interface';
export declare const ENTITY_MANAGER_KEY = "ENTITY_MANAGER";
export declare const bindCrudTransactionDataSource: (dataSource: DataSource) => void;
export declare const bindCrudTransactionContextHook: (hook: CrudTransactionContextHook | undefined) => void;
export declare class TransactionInterceptor implements NestInterceptor {
    private readonly injectedContextHook?;
    constructor(injectedContextHook?: CrudTransactionContextHook);
    private resolveContextHook;
    private resolveDataSource;
    intercept(context: ExecutionContext, next: CallHandler<any>): Promise<any>;
}