/// <summary>
/// Refreshes a value in the cache based on its key, resetting its sliding expiration timeout (if any).
/// </summary>
/// <param name="key">A string identifying the requested value.</param>
/// <param name="cancellationToken">Optional. The System.Threading.CancellationToken used to propagate notifications that the operation should be canceled.</param>
/// <returns>The System.Threading.Tasks.Task that represents the asynchronous operation.</returns>
public async Task RefreshAsync(
string key,
CancellationToken cancellationToken = default)
{
await L2Cache.RefreshAsync(key, cancellationToken);
}
