You can search for identifiers within the package.
in-package search v0.2.0
type ty =
| Instant
| Counter
| Duration_begin
| Duration_end
| Duration_complete
| Async_begin
| Async_instant
| Async_end
| Flow_begin
| Flow_step
| Flow_end
| Unknown of int
type t = {
ty : ty;
timestamp : Stdlib.Int64.t;
thread : thread;
category : string;
name : string;
args : Args.t;
}