@onready var path: Path2D = $UberPath2D
@onready var sprite: Sprite = $my_sprite
var rect2: Rect2 = Rect2(0, 0, 500, 500)

var path_follow_2d: PathFollow2D = UberPath2D.get_bounded_path_follow_2d(
    self,  # or some other container to parent to
    sprite.get_path(),  # the sprite you want to move along the path
    path.normalized_points,
    rect2,
    UberPath2D.BOTTOM_LEFT,  # or some other corner, BOTTOM_LEFT is the default.
)

# tween it!
await create_tween()\
    .tween_property(path_follow_2d, "progress_ratio", 1.0, 3.5).finished