1. override
void bezierCurveTo(double controlX1, double controlY1, double controlX2, double controlY2, double endX, double endY)

Source

@override
void bezierCurveTo(double controlX1, double controlY1, double controlX2, double controlY2, double endX, double endY) {
  _path.bezierCurveTo(controlX1, controlY1, controlX2, controlY2, endX, endY);
}