pubtraitCurve{// // Returns a new curve that is the reversed inversion of this one. [...]
// flipped: Curve,
// Returns the value of the curve at point t.
fntransform(&self, t:f32)->f32;}#[derive(Default)]pubstructNoneCurve;implCurve forNoneCurve{fntransform(&self, t:f32)->f32{todo!()}}