import type { Page } from '@blockeditor/store';
import type { EdgelessBlockModel, EdgelessModel } from '../../page-block/edgeless/type.js';
import type { SurfaceBlockModel } from '../surface-model.js';
import type { Layer } from './layer-manager.js';
export declare function getLayerZIndex(layers: Layer[], layerIndex: number): number;
export declare function updateLayersIndex(layers: Layer[], startIdx: number): void;
export declare function getElementIndex(indexable: EdgelessModel): string;
export declare function ungroupIndex(index: string): string;
export declare function insertToOrderedArray(array: EdgelessModel[], element: EdgelessModel): void;
export declare function removeFromOrderedArray(array: EdgelessModel[], element: EdgelessModel): void;
export declare function isInRange(edges: [EdgelessModel, EdgelessModel], target: EdgelessModel): boolean;
export declare function renderableInEdgeless(page: Page, surface: SurfaceBlockModel, block: EdgelessBlockModel): boolean;
export declare function compare(a: EdgelessModel, b: EdgelessModel): 1 | 0 | -1;
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