import BaseLayer from './baselayer.js';
import ILayerWithTime from './ilayerwithtime.js';
import ITimeOptions from '../../tools/time/itimeoptions.js';
export type GroupLayerOptions = {
    isDefaultChecked?: boolean;
    disclaimer?: string;
    metadataUrl?: string;
    isDefaultExpanded?: boolean;
    isExclusiveGroup?: boolean;
    isMixed?: boolean;
    time?: ITimeOptions;
    timeAttribute?: string;
};
declare class GroupLayer extends BaseLayer implements ILayerWithTime {
    isExclusiveGroup: boolean;
    isExpanded: boolean;
    _isMixed?: boolean;
    activeState: 'on' | 'off' | 'semi';
    timeOptions?: ITimeOptions;
    timeAttribute?: string;
    timeRestriction?: string;
    children: BaseLayer[];
    constructor(id: number, name: string, order: number, options?: GroupLayerOptions);
    clone(): GroupLayer;
    get active(): boolean;
    get inactive(): boolean;
    get semiActive(): boolean;
    get hasTimeRestriction(): boolean;
    get hasGrandChildren(): boolean;
    setDefaultTimeRestriction(): void;
    /**
     * Checks if all the children are LayerWms with the same ogcServer, opacity
     * time
     */
    get isMixed(): boolean;
}
export default GroupLayer;