public async void DeleteSecrets()
        {
            using (var client = new VaultClient(TestVaultAddress))
            {
                client.VaultToken = TestRootToken;

                await Task.WhenAll(
                    client.DeleteGenericSecretAsync("foo1"),
                    client.DeleteGenericSecretAsync("foo2"));

                var list = await client.ListGenericSecretsAsync();

                Assert.Equal(0, (list?.Data?.Keys?.Where(x =>
                                                         new[] { "foo1", "foo2" }.Contains(x))?.Count()).GetValueOrDefault());
            }
        }