You can search for identifiers within the package.
in-package search v0.2.0
type size = [
| `S1024_1024
| `S512_512
| `S256_256
]
val string_of_size : [< `S1024_1024 | `S256_256 | `S512_512 ] -> string
type response_format = [
| `Url
| `B64_json
val string_of_response_format : [< `B64_json | `Url ] -> string