/// <summary>
/// Gets the logical negation of an event.
/// </summary>
/// <param name="event">
/// The event to negate.
/// </param>
/// <returns>
/// A <see cref="RedisKey"/> where the results have been stored.
/// </returns>
public static async Task<RedisKey> NotAsync(Event @event)
{
var database = SharedCache.Instance.GetAnalyticsWriteConnection().GetDatabase(SharedCache.Instance.Db);
// get the keys for the event (need to group subsets using TemporarilyOrKeys)
var key = await TemporarilyOrKeysAsync(database, @event.RedisKeys());
RedisKey tmpKey = TempKey(@event);
await BitwiseAnalytics.BitwiseNotAsync(database, tmpKey, key, TimeSpan.FromHours(1));
return tmpKey;
}
