Use different type of fields for ID for the node

[sergeyglazyrindev]

Hey guys!
What does it take to make possible to use int64 or uint types for Id ? I am getting runtime errors here:
https://github.com/griffinqiu/go-nested-set/blob/main/nested_set.go#L63
here is my model definition:

type DiscussionComment struct {
	ID            uint       `gorm:"primarykey" nestedset:"id"`
}