(module hashed-bag mzscheme

  (require "../private/require.ss")
  (require-contracts)
  (require-class)
  (require-lists)

  (require "../private/contracts.ss"
           "../table/hashed-table.ss"
           "bag-interface.ss"
           "bag-from-table.ss")

  (provide/contract
   [hashed-bag% (implementation?/c bag<%>)]
   [make-hashed-bag (([hash hash-fn/c]
                      [equ? equality/c]
                      [elems (listof any/c)])
                     . ->r . bag/c)])

  (define (make-hashed-bag hash equ? elems)
    (foldl (lambda (elem bag)
             (send bag insert elem))
           (make-bag-from-table (make-hashed-table hash equ? null null))
           elems))

  (define hashed-bag% bag-from-table%)
  
  )