/**
  * Changes the DrawingManager's drawing mode, which defines the type of overlay to be added on the
  * map. Accepted values are MARKER, POLYGON, POLYLINE, RECTANGLE, CIRCLE, or null. A drawing mode
  * of null means that the user can interact with the map as normal, and clicks do not draw
  * anything.
  *
  * @param drawingMode
  */
 public final void setDrawingMode(OverlayType drawingMode) {
   setDrawingModeImpl(drawingMode.value());
 }
 /** Returns the DrawingManager's drawing mode. */
 public final OverlayType getDrawingMode() {
   return OverlayType.fromValue(getDrawingModeImpl());
 }