import GirafeSingleton from '../../base/GirafeSingleton.js';
/**
 * Handles the feature selection, independently from the map (2D or 3D) the selection was triggered from.
 * The selection is done in two steps:
 * 1. `select()` asks every layer manager to add its own <code>SelectionParam</code> to the state.
 * 2. The change of <code>selection.selectionParameters</code> triggers the effective query
 *    (WMS GetFeatureInfo and WFS GetFeature) and writes the resulting features into the state.
 */
export default class SelectionManager extends GirafeSingleton {
    private get state();
    initializeSingleton(): void;
    /**
     * Selects all the features of the queryable layers that are inside the given extent.
     * Layers selectable today are WMS, WMTS (with wms layer) and Local files.
     */
    select(extent: number[]): void;
    selectNone(): void;
    private onSelectFeatures;
}