val is_subset : comparator:('a, 'cmp) Comparator.t -> ('a, 'cmp) t -> of_:('a, 'cmp) t -> unit Or_error.tval equal : comparator:('a, 'cmp) Comparator.t -> ('a, 'cmp) t -> ('a, 'cmp) t -> unit Or_error.tTree.Namedval is_subset : comparator:('a, 'cmp) Comparator.t -> ('a, 'cmp) t -> of_:('a, 'cmp) t -> unit Or_error.tval equal : comparator:('a, 'cmp) Comparator.t -> ('a, 'cmp) t -> ('a, 'cmp) t -> unit Or_error.t