In API doc you will see:
```
# your
VALUE   0  Token value index
OFFSET  1  Token offset index
TYPE    2  Token type index

# mine
VALUE   0  token index
OFFSET  1  token index
TYPE    2  token index
```
Where's the difference?

None should care about constants till he read the `tokenize()` API. And there should be these mentioned. After that, `token index` or just `index` is IMHO fine.