import { BinaryIO } from '../common/BinaryIO.js';
import type { ArxLLF } from './LLF.js';
/**
 * @see https://github.com/arx/ArxLibertatis/blob/1.2.1/src/scene/LevelFormat.h#L178
 */
export type ArxLlfHeader = {
    lastModifiedBy: string;
    /**
     * unix timestamp in seconds
     */
    lastModifiedAt: number;
    numberOfLights: number;
    numberOfPolygonsInFTS: number;
};
export declare class LlfHeader {
    static readFrom(binary: BinaryIO<ArrayBufferLike>): ArxLlfHeader;
    static accumulateFrom(json: ArxLLF): ArrayBuffer;
    static sizeOf(): number;
}