You can search for identifiers within the package.
in-package search v0.2.0
vlt
vlt.mt
vlt_ppx
Vlt_ppx.Prepare
val expand : ctxt:Ppxlib.Expansion_context.Extension.t -> Ppxlib_ast.Ast.structure_item
val extract : unit -> ('a, 'b, 'b) Ppxlib.Ast_pattern.t
val extension : Ppxlib.Extension.V3.t