import type { ScreenViewport } from "@itwin/core-frontend";
import type { MapLayerSourcesState } from "./types";
/**
 * Loads and maintains available non-basemap map-layer sources for the active viewport.
 *
 * The hook merges public/external sources with persisted user preference sources,
 * applies custom parameter mappings, sorts the final list, and keeps it in sync with
 * `MapLayerPreferences.onLayerSourceChanged` events.
 */
export declare function useMapLayerSources(args: {
    activeViewport: ScreenViewport;
    fetchPublicMapLayerSources: boolean;
    hideExternalMapLayersSection: boolean;
}): MapLayerSourcesState;
//# sourceMappingURL=useMapLayerSources.d.ts.map