docs: public void lineTo(float x, float y) {
          PathLineOperation operation = new PathLineOperation();
          operation.x = x;
          operation.y = y;
          operations.add(operation);
  
          LineShadowOperation shadowOperation = new LineShadowOperation(operation, endX, endY);
  
          // The previous endX and endY is the starting point for this shadow operation.
          addShadowCompatOperation(
                  shadowOperation,
                  ANGLE_UP + shadowOperation.getAngle(),
                  ANGLE_UP + shadowOperation.getAngle());
  
          endX = x;
          endY = y;
      }