import { HotMeshEngine, HotMeshWorker } from '../../types/hotmesh';
import { ProviderConfig, ProviderNativeClient } from '../../types/provider';
export declare class ConnectorService {
    static disconnectAll(): Promise<void>;
    /**
     * Connect to a provider (nats, postgres) and return the native
     * client. Connections are handled by the engine and worker routers at
     * initialization, but the factory method provided here is useful
     * for testing provider configurations.
     */
    static connectClient(ProviderConfig: ProviderConfig, taskQueue?: string): Promise<ProviderNativeClient>;
    /**
     * Initialize `store`, `stream`, and `subscription` clients for any provider.
     *
     * When the target has `workerCredentials`, the `user` and `password`
     * in all connection options are overridden with the scoped Postgres
     * role credentials, and `securedWorker` is set so downstream stream
     * services use SECURITY DEFINER stored procedures.
     *
     * @private
     */
    static initClients(target: HotMeshEngine | HotMeshWorker): Promise<void>;
    /**
     * Binds a provider client native instance to the target object.
     * @private
     */
    static initClient(ProviderConfig: ProviderConfig, target: HotMeshEngine | HotMeshWorker, field: string, taskQueue?: string): Promise<void>;
}