def increment(key, amount = 1, options = {})
      value = Utils.to_int(load(key, options)) + amount
      store(key, value.to_s, options)
      value
    end
def increment(key, amount = 1, options = {})
      value = Utils.to_int(load(key, options)) + amount
      store(key, value.to_s, options)
      value
    end
(see Defaults#increment)