import type { WebSocket } from "ws";
import type { PtyViewEngine } from "../engines/pty-view-engine.js";
export declare const PTY_RESUME_DEADLINE_MS = 15000;
interface AttachPtyWebSocketOptions {
    resumeDeadlineMs?: number;
}
/** Attach a snapshot-first, per-session PTY WebSocket. */
export declare function attachPtyWebSocket(ws: WebSocket, sessionId: string, engine: PtyViewEngine, options?: AttachPtyWebSocketOptions): void;
export {};
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