Module Let_syntax.Let_syntax
val return : 'a -> 'a Base__Option.t
val bind :
'a Base__Option.t ->
f:('a -> 'b Base__Option.t) ->
'b Base__Option.t
val map : 'a Base__Option.t -> f:('a -> 'b) -> 'b Base__Option.t
val both : 'a Base__Option.t -> 'b Base__Option.t -> ('a * 'b) Base__Option.t