createOrUpdateSketchPoint_(coordinates) {
    if (!this.sketchPoint_) {
      this.sketchPoint_ = new Feature(new Point(coordinates));
      this.updateSketchFeatures_();
    } else {
      const sketchPointGeom = this.sketchPoint_.getGeometry();
      sketchPointGeom.setCoordinates(coordinates);
    }
  }
@param {import("../coordinate").Coordinate} coordinates Coordinate.
@private