You can search for identifiers within the package.
in-package search v0.2.0
type t = string * string
val serialno : t -> nativeint
val eos : t -> bool
val bos : t -> bool
val continued : t -> bool
val packets : t -> int
val version : t -> int
val granulepos : t -> Int64.t
val pageno : t -> nativeint
val set_checksum : t -> unit