import type { FreeRect, PlacementResult } from './types';
export declare class FreeRectManager {
    private rects;
    constructor(width: number, height: number);
    getRects(): readonly FreeRect[];
    clone(): FreeRectManager;
    insert(placed: PlacementResult): void;
    private splitFreeNode;
    private trySplitVertically;
    private trySplitHorizontally;
    private pruneFreeList;
    private isContainedIn;
}
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