code: def to_g_marker_api2(marker_options = {}, options = {})
        klass = if options[:short_class]
          'GMarker'
        else
          'google.maps.Marker'
        end
  
        opts = Geos::Helper.camelize_keys(marker_options)
  
        "new #{klass}(#{self.centroid.to_g_lat_lng(options)}, #{opts.to_json})"
      end
docs: Returns a new GMarker at the centroid of the geometry. The options
   Hash works the same as the Google Maps API GMarkerOptions class does,
   but allows for underscored Ruby-like options which are then converted
   to the appropriate camel-cased Javascript options.