You can search for identifiers within the package.
in-package search v0.2.0
Clock devices for MirageOS devices using Lwt
Release v2.0.0
module type MCLOCK = Mirage_clock.MCLOCK with type 'a io = 'a Lwt.t
module type PCLOCK = Mirage_clock.PCLOCK with type 'a io = 'a Lwt.t