/// <summary>
/// Inserts the <see cref="IKaguyaUnique{T}" /> object into the database, assuming it doesn't already exist.
/// If it exists, this will replace it via the PrimaryKey.
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="arg"></param>
/// <returns></returns>
public static async Task InsertOrReplaceAsync <T>(T arg) where T : class, IKaguyaQueryable <T>, IKaguyaUnique <T>
{
using (var db = new KaguyaDb())
await db.InsertOrReplaceAsync(arg);
}