/// <summary>
/// Inserts the <see cref="T" /> <see cref="arg" /> into the database and returns the <see cref="T" /> <see cref="arg" />
/// with it's updated auto-incremented identifier. Use this only if the database table has an auto-incremented ID.
/// </summary>
/// <param name="arg"></param>
/// <typeparam name="T"></typeparam>
/// <returns>The id of the <see cref="T" />.</returns>
public static async Task <int> InsertWithIdentityAsync <T>(T arg) where T : class,
IKaguyaQueryable <T>, IKaguyaUnique <T>
{
using (var db = new KaguyaDb())
{
int val = await db.InsertWithInt32IdentityAsync(arg);
return(val);
}
}