/**
 * Laya-MLX judge adapter for pi-warden.
 *
 * Implements the pi-typesafe `Judge` interface by communicating with a long-running
 * Python subprocess that loads the Laya model once and answers questions on demand.
 *
 * Architecture:
 *   Node (LayaJudge) ←stdin/stdout JSON→ Python (laya-bridge.py)
 */
import type { Judge } from "pi-typesafe";
import type { EvaluationOptions } from "pi-typesafe";
import type { SystemOneRequest } from "@typesafe-ai/sdk";
/**
 * A Judge backed by a local Laya-MLX model via a Python subprocess.
 *
 * Usage:
 *   const judge = await LayaJudge.create(onStatus);
 *   const result = await judge.evaluate(request);
 */
export declare class LayaJudge implements Judge {
    private onStatus?;
    private process;
    private pending;
    private ready;
    private readyPromise;
    private modelName;
    private buffer;
    private requestCounter;
    /** Resolved Python binary path; set by create() before spawnBridge(). */
    python: string | null;
    private constructor();
    private _resolveReady;
    /**
     * Create a LayaJudge: download the model if needed, then spawn the Python bridge.
     */
    static create(onStatus?: (msg: string) => void): Promise<LayaJudge>;
    /**
     * Evaluate a SystemOneRequest — the core Judge interface method.
     */
    evaluate(request: SystemOneRequest, options?: EvaluationOptions): Promise<any>;
    /** Shut down the Python bridge subprocess gracefully. */
    shutdown(): Promise<void>;
    private spawnBridge;
    private processBuffer;
    private handleMessage;
}
/** Run `python --version` and return [major, minor] or null. */
export declare function getPythonVersion(cmd: string): Promise<number[] | null>;
/**
 * Find a Python 3.11+ binary on this machine.
 *
 * Phase 1: scan every search directory for `python3.X` files where X >= 11,
 * sort newest-first, probe each.  This covers any future Python version
 * without hardcoding names.
 *
 * Phase 2: generic `python3` / `python` on PATH and in well-known dirs.
 * These may point to an old system Python (3.9 on macOS), so they are
 * tried last.
 *
 * Exported for tests.
 */
export declare function findPython(): Promise<string | null>;