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+# DecrementAsync Method
+
+The `DecrementAsync` method is part of the `IRedisRepository<T>` interface in the `NetPlus.ServiceAbstractions.Cache.Redis` library. This method decrements the value of a key in the Redis cache asynchronously.
+
+## Syntax
+
+```csharp
+public async Task<long> DecrementAsync(string key, long value = 1)
+```
+
+## Parameters
+
+- `key`: The key of the value to decrement in the Redis cache. This is a string.
+- `value`: The amount by which to decrement the value. This is a long. The default value is 1.
+
+## Returns
+
+A task representing the asynchronous operation and containing the new value after the decrement.
+
+## Example
+
+```csharp
+var repository = serviceProvider.GetService<IRedisRepository<long>>();
+long newValue = await repository.DecrementAsync("myKey", 5);
+```
+
+In this example, the value of the key "myKey" in the Redis cache will be decremented by 5. `newValue` will contain the new value after the decrement.
+
+## Remarks
+
+> [!NOTE]
+> The `DecrementAsync` method uses the `StringDecrementAsync` method from the `IDatabase` interface provided by the StackExchange.Redis library to decrement the value in Redis.
+
+> [!TIP]
+> If the key does not exist in the Redis cache, the `DecrementAsync` method will create it with a value of -1 (or the negative of the decrement value if it's not 1).
+
+> [!WARNING]
+> Be aware that the `DecrementAsync` method will throw an exception if the Redis server is not available or if there is a network issue. Make sure to handle these exceptions in your code.