exp/cpp/export/export.go
func FrameSet_Index(id FrameSetId, frame int) C.int {
	fs, ok := sFrameSets.Get(id)
	if !ok {
		return C.int(-1)
	}
	return C.int(fs.Index(frame))
}
func FrameSet_Index(id FrameSetId, frame int) C.int {
	fs, ok := sFrameSets.Get(id)
	if !ok {
		return C.int(-1)
	}
	return C.int(fs.Index(frame))
}
//export FrameSet_Index