import { ExgMapBicyclingLayerDirective } from '../../exg-map-bicycling-layer/exg-map-bicycling-layer.directive';
import { ExgMapTransitLayerDirective } from '../../exg-map-transit-layer/exg-map-transit-layer.directive';
import { ExgMapGoogleAPIWrapper } from '../exg-map-google-api-wrapper.service';
/**
 * This class manages Transit and Bicycling Layers for a Google Map instance.
 */
export declare class ExgMapLayerManagerService {
    private _wrapper;
    private _layers;
    constructor(_wrapper: ExgMapGoogleAPIWrapper);
    /**
     * Adds a transit layer to a map instance.
     * @param layer - a TransitLayer object
     * @param _options - TransitLayerOptions options
     * @returns void
     */
    addTransitLayer(layer: ExgMapTransitLayerDirective): void;
    /**
     * Adds a bicycling layer to a map instance.
     * @param layer - a bicycling layer object
     * @param _options - BicyclingLayer options
     * @returns void
     */
    addBicyclingLayer(layer: ExgMapBicyclingLayerDirective): void;
    /**
     * Deletes a map layer
     * @param layer - the layer to delete
     */
    deleteLayer(layer: ExgMapTransitLayerDirective | ExgMapBicyclingLayerDirective): Promise<void>;
}
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