You can search for identifiers within the package.
in-package search v0.2.0
type ('a, 'b) t = ('a, 'b) result
val bind : f:('a -> ('b, 'c) result) -> ('a, 'c) result -> ('b, 'c) result
val map : ('a -> 'b) -> ('a, 'c) result -> ('b, 'c) result