You can search for identifiers within the package.
in-package search v0.2.0
IterBigarrayShims_.ml
1 2 3 4 let bigarray_map_file fd ty lay b len = Unix.map_file fd ty lay b [| len |] |> Bigarray.array1_of_genarray
1 2 3 4
let bigarray_map_file fd ty lay b len = Unix.map_file fd ty lay b [| len |] |> Bigarray.array1_of_genarray