@abstract(APIKey is the Key to use on Google Maps.)

To obtaining Api Key please check: https://developers.google.com/maps/documentation/javascript/get-api-key @br@br
Google Maps limits:
@unorderedList(
     @item(General info: https://developers.google.com/maps/documentation/javascript/usage)
     @item(Directions: https://developers.google.com/maps/documentation/directions/usage-limits)
     @item(Geocoding limits usage: https://developers.google.com/maps/documentation/geocoding/usage-limits)
     @item(Elevation limits usage: https://developers.google.com/maps/documentation/elevation/usage-limits)
     @item(Distance-Matrix limits usage: https://developers.google.com/maps/documentation/distance-matrix/usage-limits)
     @item(Geolocation limits usage: https://developers.google.com/maps/documentation/geolocation/usage-limits)
     @item(Roads limits usage: https://developers.google.com/maps/documentation/roads/usage-limits)
     @item(Time Zone limits usage: https://developers.google.com/maps/documentation/timezone/usage-limits)
   )

@raises EGMMapIsActive This exception is raised when @code(Active) property is @code(True).
