You can search for identifiers within the package.
in-package search v0.2.0
val encode : ('a -> (string -> unit) -> unit) -> ('b -> (string -> unit) -> unit) -> ('a * 'b) -> (string -> unit) -> unit
val decode : (string -> int ref -> 'a) -> (string -> int ref -> 'b) -> string -> int ref -> 'a * 'b
val sizer : 'a Size.Sizer.t -> 'b Size.Sizer.t -> ('a * 'b) Size.Sizer.t