import { BasedServer } from '../server.js';
import { ActiveObservable } from './types.js';
import { BasedErrorCode, BasedErrorData } from '@based/errors';
import { WebSocketSession, Context, ObservableUpdateFunction } from '@based/functions';
export declare const subscribeWs: (server: BasedServer, id: number, checksum: number, ctx: Context<WebSocketSession>) => void;
export declare const subscribeFunction: (server: BasedServer, id: number, update: ObservableUpdateFunction) => void;
export declare const subscribeNext: (obs: ActiveObservable, onNext: (err?: BasedErrorData<BasedErrorCode.FunctionError>) => void) => void;