`sig
type contents
type t
val create :
size:Bucket.S.contents -> init_level:Bucket.S.contents -> Bucket.S.t
val size : Bucket.S.t -> Bucket.S.contents
val level : Bucket.S.t -> Bucket.S.contents
val take : Bucket.S.t -> Bucket.S.contents -> [ `Taken | `Unable ]
val take_at_most : Bucket.S.t -> Bucket.S.contents -> Bucket.S.contents
val fill : Bucket.S.t -> Bucket.S.contents -> unit
val t_of_sexp : Sexplib.Sexp.t -> Bucket.S.t
val sexp_of_t : Bucket.S.t -> Sexplib.Sexp.t
val bin_t : Bucket.S.t Bin_prot.Type_class.t
val bin_read_t : Bucket.S.t Bin_prot.Read.reader
val __bin_read_t__ : (int -> Bucket.S.t) Bin_prot.Read.reader
val bin_reader_t : Bucket.S.t Bin_prot.Type_class.reader
val bin_size_t : Bucket.S.t Bin_prot.Size.sizer
val bin_write_t : Bucket.S.t Bin_prot.Write.writer
val bin_writer_t : Bucket.S.t Bin_prot.Type_class.writer
end`