You can search for identifiers within the package.
in-package search v0.2.0
middleware_error.ml
1 2 3 4 let m () = let filter handler req = handler req in Opium_kernel.Rock.Middleware.create ~name:"error handler" ~filter ;;
1 2 3 4
let m () = let filter handler req = handler req in Opium_kernel.Rock.Middleware.create ~name:"error handler" ~filter ;;