/**
 * Tier-1 typed interpreter: validate one NDJSON control line (Router→Worker, fd
 * 0) into a typed {@link ControlMessage}. Hand-rolled guards keep the package
 * dependency-free. A malformed line throws a clear error (never a silent skip).
 */
import type { ControlMessage, DoneEvent, ErrorEvent, Invoke, NativeEvent, Shutdown, TextEvent, WorkerEvent, WorkerHelloEvent } from "./protocol.js";
export declare function isInvoke(m: ControlMessage): m is Invoke;
export declare function isShutdown(m: ControlMessage): m is Shutdown;
export declare function parseControl(line: string): ControlMessage;
export declare function isText(e: WorkerEvent): e is TextEvent;
export declare function isDone(e: WorkerEvent): e is DoneEvent;
export declare function isError(e: WorkerEvent): e is ErrorEvent;
export declare function isNative(e: WorkerEvent): e is NativeEvent;
export declare function isHello(e: WorkerEvent): e is WorkerHelloEvent;
/**
 * Router-side typed interpreter: validate one NDJSON event line (Worker→Router,
 * fd 3) into a typed {@link WorkerEvent}. Mirror of {@link parseControl}; a
 * malformed line throws (never a silent skip).
 */
export declare function parseEvent(line: string): WorkerEvent;
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