import { BehaviorSubject } from 'rxjs/Rx';
export declare class GoogleMapService {
    apiKey: string;
    apiReady: Boolean;
    loadingApi: Boolean;
    mapsApi$: BehaviorSubject<{
        ready: boolean;
        error?: any;
    }>;
    constructor();
    loadApi(): void;
    addScript(url: any, callback?: any): void;
}