docs: def hash_from_stream(n, hash_stream):
      """
      >>> from Redy.Tools.Hash import hash_from_stream
      >>> s = iter((1, 2, 3))
      >>> assert hash_from_stream(3, iter(s)) == hash((1, 2, 3))
  
      """
      x = to_int64(0x345678)
      multiplied = to_int64(1000003)
      for i in range(n - 1, -1, -1):
          h = next(hash_stream)
          if h is -1:
              return -1
          x = (x ^ h) * multiplied
          multiplied += to_int64(82520 + 2 * n)
      x += 97531
      if x == -1:
          return -2
  
      return x