usage.js

smoothScroll({
  scrollElement: window,
  scrollAmount: 300,
  cubicBezierPoints: {
    x1: 0.2,
    x2: 0.5,
    y1: 0.5,
    y2: 0.9
  },
  onRefUpdateCallback: (animationInstance) => {
    // cancelAnimationFrame(animationInstance);
  },
  onAnimationCompleteCallback: () => {
    console.log('animation complete!');
  },
  duration: 2000,
  direction: 'right'
});