You can search for identifiers within the package.
in-package search v0.2.0
type t = [
| `Ref of string
| `PR of int
]
val pp : t Fmt.t
val compare : t -> t -> int
val to_git : t -> string
to_git t is the Git-format string of the ref, e.g."refs/pull/%d/head"
to_git t