import { Logger } from '@n8n/backend-common';
import { EngineConfig } from '@n8n/config';
import type { ExecutionResponseChannel } from '@n8n/engine';
import { CredentialTypes } from '../../credential-types';
import { CredentialsHelper } from '../../credentials-helper';
import { NodeTypes } from '../../node-types';
import { EngineControlPlaneClient } from './engine-control-plane-client';
import { EngineCredentialsClient } from './engine-credentials-client';
export declare class EngineV2Runtime {
    private readonly engineConfig;
    private readonly nodeTypes;
    private readonly logger;
    private readonly controlPlaneClient;
    private readonly credentialsClient;
    private readonly credentialsHelper;
    private readonly credentialTypes;
    private dataSource?;
    private engine?;
    private server?;
    private stopping?;
    constructor(engineConfig: EngineConfig, nodeTypes: NodeTypes, logger: Logger, controlPlaneClient: EngineControlPlaneClient, credentialsClient: EngineCredentialsClient, credentialsHelper: CredentialsHelper, credentialTypes: CredentialTypes);
    init(responseChannel: ExecutionResponseChannel): Promise<void>;
    private initDb;
    private initEngine;
    private buildAdditionalData;
    private initServer;
    shutdown(): Promise<void>;
    private closeServer;
    private stopEngine;
    private destroyDataSource;
}