You can search for identifiers within the package.
in-package search v0.2.0
h2-lwt
H2_lwt
module type IO = sig ... end
module type Server = sig ... end
module type Client = sig ... end
module Server (Io : IO) : Server with type socket := Io.socket and type addr := Io.addr
module Client (Io : IO) : Client with type socket := Io.socket