import { type SourceSpecification, type GeoJSONSourceSpecification, type Source, type GeoJSONSource } from 'maplibre-gl';
export declare function getLayerName(sourceKey: string, layerKey: string, managed: boolean): string;
type ModifiedSourceSpecification = Exclude<SourceSpecification, GeoJSONSourceSpecification> | Omit<GeoJSONSourceSpecification, 'data'>;
export declare function isGeoJSONSourceSpecification(s: ModifiedSourceSpecification): s is Omit<GeoJSONSourceSpecification, 'data'>;
export declare function isGeoJSONSource(s: Source): s is GeoJSONSource;
export {};