Stdppx.NonEmptyList
type 'a t = 'a * 'a list
val (@) : ('a * 'b list) -> ('b * 'b list) -> 'a * 'b list
val hd : ('a * 'b) -> 'a
val to_list : ('a * 'a list) -> 'a list
val map : f:('a -> 'b) -> ('a * 'a list) -> 'b * 'b list