biocaml.unix
Biocaml_result.List
biocaml.base
biocaml.ez
val mapi : 'a list -> f:(int -> 'a -> ('b, 'e) t) -> ('b list, 'e) t
val map : 'a list -> f:('a -> ('b, 'err) t) -> ('b list, 'err) t