namespace Microsoft.EntityFrameworkCore
{
    public abstract class OptimisticConcurrencyTestBase<TFixture, TRowVersion> : IClassFixture<TFixture>
        where TFixture, new(), F1FixtureBase<TRowVersion>
    {
        [AsyncStateMachine(typeof(<ConcurrencyTestAsync>d__46<?>))]
        protected virtual Task ConcurrencyTestAsync<TException>(Func<F1Context, Task> storeChange, Func<F1Context, Task> clientChange, Func<F1Context, TException, Task> resolver, Func<F1Context, Task> validator)
            where TException, DbUpdateException;
    }
}