decrement method

@override Future<int> decrement(String key, [ int amount = 1 ])

Decrement the value of an item in the cache.

• Parameters:
  • key: The key of the item to decrement.
  • amount: The amount to decrement by (default is 1).
• Returns: The new value of the item.

Implementation

@override
Future<int> decrement(String key, [int amount = 1]) async {
  return increment(key, -amount);
}