/**
 * Low-level send/close primitives for the worker WebSocket protocol.
 *
 * Split out as a leaf module so both `websocket-worker.ts` (task/heartbeat
 * handling) and `websocket-worker-registration.ts` (registration handling)
 * can depend on it without forming an import cycle between those two.
 *
 * @module server/runtime/websocket-worker-messaging
 */
import type { ServerWebSocket } from 'bun';
import { type ProtocolErrorMessage, type RegisterErrorMessage } from '../../worker/protocol.ts';
import type { WebSocketData } from '../json-rpc-websocket-runtime.ts';
export declare function sendWorkerProtocolMessage(ws: ServerWebSocket<WebSocketData>, message: ProtocolErrorMessage | RegisterErrorMessage | Record<string, unknown>): void;
export declare function closeWorkerSocket(ws: ServerWebSocket<WebSocketData>, code: number, reason: string): void;
export declare function rejectRegistration(ws: ServerWebSocket<WebSocketData>, code: RegisterErrorMessage['code'], message: string, requestedProtocolVersion?: number): void;
export declare function rejectProtocolMessage(ws: ServerWebSocket<WebSocketData>, code: ProtocolErrorMessage['code'], message: string): void;