You can search for identifiers within the package.
in-package search v0.2.0
qcow
Qcow
module Error = Qcow_error
module Header = Qcow_header
module Physical = Qcow_physical
module Int64 = Qcow_types.Int64
module Make (B : Qcow_s.RESIZABLE_BLOCK) : sig ... end