You can search for identifiers within the package.
in-package search v0.2.0
module L : sig ... end
type path
type leaf = L.scalar
type root = L.scalar
val path_encoding : (P.path, path, (L.scalar * bool) list) L.Encodings.encoding
val merkle_proof : path -> leaf L.repr -> root L.repr -> bool L.repr L.t