You can search for identifiers within the package.
in-package search v0.2.0
hacl
SHA512.HMAC
val write : key:Bigstring.t -> msg:Bigstring.t -> Bigstring.t -> unit
[Invalid_argument]
if argument is less than 32 bytes long
val digest : key:Bigstring.t -> msg:Bigstring.t -> Bigstring.t