I am working with `angular2-google-maps` and latest version of Angular2. I am trying to convert some of the local map component functions into services in their own file `maps.service.ts`. For example:

map.component.ts

    getGeoLocation(lat: number, lng: number) {
    if (navigator.geolocation) {
        let geocoder = new google.maps.Geocoder();
        let latlng = new google.maps.LatLng(lat, lng);
        let request = { latLng: latlng };
        geocoder.geocode(request, (results, status) =&gt; {
          if (status == google.maps.GeocoderStatus.OK) {
            let result = results[0];
            if (result != null) {
              this.fillInputs(result.formatted_address);
            } else {
              alert(&quot;No address available!&quot;);
            }
          }
        });
    }
    }

Into something like: `maps.service.ts`

    getGeoLocation(lat: number, lng: number): Observable&lt;google.maps.GeocoderResult[]&gt; {
        let geocoder = new google.maps.Geocoder();
        let latlng = new google.maps.LatLng(lat, lng);
        let request = { latLng: latlng };
        return new Observable((observer: Observer&lt;google.maps.GeocoderResult[]&gt;) =&gt; {
            geocoder.geocode({ request }, (
                (results: google.maps.GeocoderResult[], status: google.maps.GeocoderStatus) =&gt; {
                    if (status == google.maps.GeocoderStatus.OK) {
                        observer.next(results);
                        observer.complete();
                    } else {
                        console.log(&#39;Geocoding service failed due to: &#39; +status);
                        observer.error(status);
                    }
                }
            ));
        });
    }

The issue I&#39;m getting is that `google` variable is not being recognized when I try to use `Observer&lt;google.maps.GeocoderResult[]&gt;`. I have `declare var google: any;` outside of the service class as well.

The `google` variable works in my `map.componenet.ts` but doesn&#39;t get recognized in the `maps.service.ts`.

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Angular2 Cannot find namespace 'google'