You can search for identifiers within the package.
in-package search v0.2.0
val (@.) : ('a -> 'b) -> ('c -> 'a) -> 'c -> 'b
val (|>) : ('a -> 'b) -> ('b -> 'c) -> 'a -> 'c
val id : 'a -> 'a
val flip : ('a -> 'b -> 'c) -> 'b -> 'a -> 'c