input/input.go
func (p SynthesizeScrollGestureParams) WithYOverscroll(yOverscroll float64) *SynthesizeScrollGestureParams {
	p.YOverscroll = yOverscroll
	return &p
}
func (p SynthesizeScrollGestureParams) WithYOverscroll(yOverscroll float64) *SynthesizeScrollGestureParams {
	p.YOverscroll = yOverscroll
	return &p
}
// WithYOverscroll the number of additional pixels to scroll back along the Y
// axis, in addition to the given distance.