Calculates a buffer for input features for a given radius. Units supported are miles, kilometers, and degrees.
object(google.maps.Polygon | google.maps.Polyline | google.maps.Marker | google.maps.LatLng | Array<google.maps.LatLng> | Feature<(Polygon | Linestring | Point)>) input object to be bufferedoutputString either 'geometry','object' (google.maps) or 'feature', case insensitive, defaults to 'feature'radiusNumber distance to draw the buffer (negative values are allowed)optionsObject options to pass to the buffer creation function
Returns (Feature | Feature<Geometry>) A GeoJson Feature or its geometry, according to output parameter