You can search for identifiers within the package.
in-package search v0.2.0
type buf = Buffer.t
val create : 'a -> buf
val contents : buf -> t
val clear : buf -> unit
val reset : buf -> unit
val add_char : buf -> CamomileLibrary.UChar.t -> unit
val add_string : buf -> t -> unit
val add_buffer : buf -> buf -> unit