It seems that we now can use the internal function _toBuf() by exposing it directly from the internal/crypto/util. (See codes at crypto.js：Line 90~91, Line 142)：

Now I wonder：

1）Generally speaking, since this is a public function exposed to the public, should it be renamed to toBuf instead of _toBuf()? The latter looks like a private function for inner usages.

2）Should it be documented? Any other suggestions or plans?

Thanks anyway!