You can search for identifiers within the package.
in-package search v0.2.0
val size_in_bytes : int
val empty : unit -> bytes
val check_bytes : bytes -> bool
val is_zero : bytes -> bool
val zero : unit -> bytes
val one : unit -> bytes
val random : unit -> bytes
val add : bytes -> bytes -> bytes
val mul : bytes -> bytes -> bytes
val eq : bytes -> bytes -> bool
val negate : bytes -> bytes
val double : bytes -> bytes