private async Task EnsureIndicesCreatedImplAsync() { var tasks = new[] { _usersRepositoryManager.EnsureIndexAsync(o => o.Email.Value, false, true, false), _usersRepositoryManager.EnsureIndexAsync(new [] { "Logins.LoginProvider", "Logins.ProviderKey" }, false, true, true) }; await Task.WhenAll(tasks).ConfigureAwait(false); }