OpamStd.Op
val (@*) : ('b -> 'c) -> ('a -> 'b) -> 'a -> 'c
Function composition : (f @* g) x =~ f (g x)
val (@>) : ('a -> 'b) -> ('b -> 'c) -> 'a -> 'c
Reverse function composition : (f @> g) x =~ g (f x)