You can search for identifiers within the package.
in-package search v0.2.0
type mode =
| Num
Numeric mode
| Alphanum
Alphabet-numeric mode
| Data
8-bit data mode
| Kanji
Kanji (shift-jis) mode
| Structure
Internal use only
| Eci
ECI mode
| Fnc1_first
FNC1, first position
| Fnc1_second
FNC2, second position
Encoding mode
module QRinput : sig ... end
module QRcode : sig ... end
module Basic : sig ... end