/**
 * SceneSerializer.ts
 *
 * Serializes HoloScript+ scene graphs to JSON-compatible format.
 * Handles Map/Set conversion, circular reference protection,
 * and trait config extraction.
 */
import type { HSPlusNode } from '../types/HoloScriptPlus';
import { World } from '../ecs/World';
export interface SerializedScene {
    version: number;
    timestamp: string;
    name: string;
    root: SerializedNode;
    metadata?: Record<string, unknown>;
}
export interface SerializedNode {
    id: string;
    type: string;
    properties: Record<string, unknown>;
    traits: Record<string, unknown>;
    children: SerializedNode[];
}
export declare class SceneSerializer {
    private world?;
    private visitedIds;
    constructor(world?: World);
    /**
     * Serialize a scene.
     * Overload 1: serialize(root: HSPlusNode, name?, metadata?) — from node tree
     * Overload 2: serialize(name?, metadata?) — from World entities
     */
    serialize(rootOrName?: HSPlusNode | string, sceneNameOrMeta?: string | Record<string, unknown>, metadata?: Record<string, unknown>): SerializedScene;
    /**
     * Node-based serialization helper.
     */
    private serializeFromNode;
    private serializeEntity;
    /**
     * Legacy/Utility: Serialize a HSPlusNode tree
     */
    serializeNode(node: HSPlusNode): SerializedNode;
    /**
     * Serialize a node tree to a JSON string.
     */
    toJSON(root: HSPlusNode, sceneName?: string): string;
    private sanitizeProperties;
    private sanitizeValue;
}
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