You can search for identifiers within the package.
in-package search v0.2.0
type byte
val byte_to_int32 : byte -> int32
type bytes
val bytes : string -> bytes
val bytes_to_string : bytes -> string
type ipv4 = Int32.t
val ipv4_to_string : ipv4 -> string
val string_to_ipv4 : string -> ipv4
val bytes_to_ipv4 : bytes -> ipv4
type ipv6 = int32 * int32 * int32 * int32
val ipv6_to_string : ipv6 -> string
val bytes_to_ipv6 : bytes -> ipv6