You can search for identifiers within the package.
in-package search v0.2.0
type objekt = Aws_s3__S3.Make(Aws_s3_lwt.Io).Delete_multi.objekt = {
key : string;
version_id : string option;
}
type error = Aws_s3__S3.Make(Aws_s3_lwt.Io).Delete_multi.error = {
code : string;
message : string;
type result = Aws_s3__S3.Make(Aws_s3_lwt.Io).Delete_multi.result = {
delete_marker : bool;
delete_marker_version_id : string option;
deleted : objekt list;
error : error list;