Parameters
Signature
val is_empty : _ t -> boolval fold : (Key.t -> 'a -> 'b -> 'b) -> 'a t -> 'b -> 'bval cardinal : _ t -> intval bindings : 'a t -> (Key.t * 'a) listval maybe_find : Key.t -> 'a t -> 'a optionval find : Key.t -> 'a t -> 'aval mem : Key.t -> 'a t -> boolval add : Key.t -> 'a -> 'a t -> 'a t